Cuarzo

Características generales


Datos generales


Fórmula: SiO2
Sistema de cristalización: Trigonal
Lustre: Vítreo
Color: Blanco, transparente. Según variación también puede ser rosa, rojizo o negro.
Dureza: 7
Rareza: muy común
Características distintivas: Elemento muy común, hábito cristalino.
El cuarzo es el mineral más difundido y muy rico en variedades, que se pueden agrupar en macrocristalinas, con cristales bien visibles a simple vista, o criptocristalinas, formadas por cristales microscópicos. Al primer grupo pertenecen el cuarzo puro (hialino o cristal de roca), incoloro y transparente, y sus variedades impuras, que presenta diversas coloraciones: violeta (cuarzo amatista), parda (cuarzo ahumado), negra (cuarzo morión) y amarilla (cuarzo citrino). Las impurezas pueden estar también presentes en forma de escamitas brillantes (aventurita), de agujas de rutilo (rutilado) o de otros minerales fibrosos (cuarzo prasio). El segundo grupo incluye tres variedades importantes (calcedonia, jaspe y sílex) que a su vez comprenden diversas subvariedades. Por ejemplo, la cornalina, el ágata y el ónice son subvariedades de la calcedonia.

El cuarzo es el segundo elemento más común en la tierra después del agua. Está compuesto de los dos elementos más abundantes, el silicio y el oxígeno y se encuentra en casi todos los ambientes y es parte constituyente de muchas rocas.


Fotografías

Puedes ver 15 fotografías de Cuarzo en su galería de fotografías.

Variedades:


Polimorfos



Clasificación

Estado IMA: Válido. Descrito con antelación a 1959 (pre-IMA), se considera un mineral clásico o histórico (grandfathered)

Nickel-Strunz : 04.DA.05
  • 4: Óxidos
  • 04.D: Metal:Oxígeno = 1:2 y similar
  • 04.DA: Con cationes pequeños: Familia de la sílice

Dana 8th ed. : 75.1.3.1

Etimología:

El nombre de este mineral deriva del alemán Quarz antigua denominación de este mineral.



Formación y ambiente

El cuarzo constituye el 12% de la corteza terrestre. Se origina por enfriamiento de magmas o a partir de fluidos a temperaturas de entre 100 y 400 ºC. La calcedonia es hidrotermal de baja temperatura, alrededor de los 120 ºC, formándose cerca de la superficie. Aparece como mineral fundamental y accesorio en casi todo tipo de rocas ígneas (salvo en rocas básicas y ultrabásicas o en rocas infrasaturadas en sílice) y metamórficas (esquistos, cuarzo-esquistos, cuarcitas, etc.). También como mineral de neoformación o diagenético en rocas sedimentarias (jacintos de Compostela, cuarzos messinienses, etc.). Por su dureza puede estar heredado en todo tipo de rocas sedimentarias. Como mineral hidrotermal, aparece asociado a fracturas en ofitas y metabasitas, así como en algunas lamproitas (Cerro Negro de Zeneta).

Accesorio, hidrotermal, ígneo, infiltraciones, magmático, metamórfico, pegmatítico (granitos), postmagmático, sedimentario.

Propiedades fisicas

Hábito: La forma típica de los cristales de cuarzo es un prisma de sección hexagonal con los extremos piramidales. En numerosos ejemplares se puede observar que tres caras del pirámide son grandes y alternan con tres caras más pequeñas: la pirámide aparece constituida por dos romboedros orientados de forma diferente. Existen dos formas de cuarzo según su estructura: cuarzo-α y cuarzo-β. El cuarzo-α o bajo cuarzo es estructura trigonal y puede existir hasta temperaturas de 573 °C. Sobre dicha temperatura el cuarzo-α se transforma en cuarzo-β o alto cuarzo que es de estructura hexagonal. A temperaturas sobre 867 °C el cuarzo-β se transforma lentamente en tridimita, otro mineral de sílice.

Variedades

Algunas variedades macrocristalinas del cuarzo son:
  • Cuarzo hialino o cristal de roca: variedad incolora y transparente de hábito prismático piramidal.
  • Amatista: variedad de color violeta por inclusiones de óxidos de hierro, normalmente piramidal o con escaso desarrollo del prisma.
  • Cuarzo citrino: variedad de cuarzo de color amarillo.
  • Jacinto de Compostela: variedad con hábito prismático bipiramidal o solamente bipiramidal de color rojo intenso. Común en las margas y yesos triásicos (facies Keuper). En sentido amplio también se denominan así al resto de cuarzos que aparecen con éstos aunque su color sea diferente (incoloros, blancos, rosados, verdosos, ahumados, negros...).
  • Cuarzo ahumado: de color marrón oscuro o negro, transparente o translúcido.
  • Cuarzo rosado: normalmente masivo y de color rosa claro.
  • Cuarzo lechoso: de color blanco, poco frecuente.
  • Cuarzo rutilado: cuarzo con inclusiones de cristales aciculares de rutilo.
  • Cuarzo morión: cuarzo marrón oscuro a negro.
  • Falso zafiro: cuarzo azul.
  • Cuarzo prasio: cuarzo verde.

Además, son muy conocidas las variedades de cuarzo que se combinan con otros minerales originando especies muy bellas, por ejemplo:
  • Ojo de tigre: pseudomorfos de cuarzo sustituyendo a la crocidolita alterada. Color pardo amarillento o pardo y un brillo sedoso.
  • Ojo de halcón: son también pseudomorfos de crocidolita pero no alterada, lo que le confiere un bello color azul y brillo sedoso.
  • Ojo de gato: pseudomorfos de cuarzo sustituyendo al anfíbol. Con color gris verdoso.
  • Venturina: es una variedad de cuarzo que contiene inclusiones de mica (fuchsita) que le da un color verde o hematites que le confiere un color pardo rojizo.



Lustre: Vítreo

Transparencia: Transparente, Opaco

Color: Blanco, transparente. Según variación también puede ser rosa, rojizo o negro.

Color en sección fina: Incolora

Raya: Blanco

Dureza (Mohs): 7

Tenacidad: Frágil

Exfoliación::
  • Primera exfoliación: Imperceptible en [0110]
  • Segunda exfoliación: Imperceptible
  • Tercera exfoliación: Imperceptible


Fractura: Concoidal

Densidad: 2,6-2,7 g/cm3 (medida) | 2,65 g/cm3 (calculada)

Cristalografía

Sistema cristalino: Trigonal

Clase (H-M): 1m (622) - Trapezohedral

Grupo espacial: P3(1)21,P3(2)21

Parámetros de la celda: a=4,913Å b=4,87Å c=5,405Å

Estructura del cristal: β=90,09º

Volumen de unidad de celda: V 113Å

Z: 3

Macla: Ley de Japón, Ley de Dauphine, Ley de Brasil y otr

Difracción de Rayos X:
Difracción de Rayos X
D(hkl)Intensidad
3,342100
4,25722
1,81814

Propiedades ópticas

Tipo: Uniaxial (+)

Valores RI: nα= 1,543 - 1,545; nγ= 1,552 - 1,554

Máxima birrefringencia: δ = 0,009

Dispersión: Ninguna

Pleocroismo: Dicroico

X: Ninguno
Y: Ninguno



Propiedades químicas

Fórmula: SiO2

Elementos químicos: Si, O

Composición química: Si: 46,74%, O: 53,26%,

Tests químicos

Fusibilidad: 7; Mineral tipo: Cuarzo; Punto de fusión: 1710ºC; Infusible con soplete
Reacción a los ácidos: Se disuelve en HF

Otras propiedades

Luminiscente (Ágata): Verde amarillento, blanco o verde
Triboluminiscente (Amatista): Azul
Luminiscente (Aventurina): Rojo
Luminiscente (Calcedonia): Verde amarillento, blanco o verde
Triboluminiscente (Cuarzo): Blanco amarillento, naranja, verde o crema.
Triboluminiscente (Cuarzo rosa): Crema


Relaciones con otros minerales

Minerales acompañantes:

Minerales acompañantes
NombreImagenClase mineralógica
AlbitaAlbita9. Silicatos
09.F: Tectosilicatos sin ceolita H2O

Na(AlSi3O8)
ApatitoApatito8. Fosfatos, arsenatos y vanadatos
08.B: Fosfatos, etc. con aniones adicionales, sin H2O

BeriloBerilo9. Silicatos
09.C: Ciclosilicatos

Be3Al2(Si6O18)
CalcitaCalcita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

CaCO3
CasiteritaCasiterita4. Óxidos
04.D: Metal:Oxígeno = 1:2 y similar

SnO2
EpidotaEpidota9. Silicatos
09.B: Sorosilicatos

{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ferroaxinita9. Silicatos
09.B: Sorosilicatos

Ca2Fe++Al2BO3Si4O12(OH)
FluoritaFluorita3. Haluros
03.A: Haluros simples, sin H2O

CaF2
OroOro1. Elementos nativos
01.A: Metales y Aleaciones de metales

Au
HematitesHematites4. Óxidos
04.C: Metal:Oxígeno = 2:3, 3:5, y Similar

Fe2O3
LepidolitaLepidolita9. Silicatos
09.E: Filosilicatos

KLi2Al(Si4O10)(F,OH)2
OrtosaOrtosa9. Silicatos
09.F: Tectosilicatos sin ceolita H2O

K(AlSi3O8)
PiritaPirita2. Sulfuros y sulfosales
02.E: Sulfuros con metal, M:S = 1:2

FeS2
RutiloRutilo4. Óxidos
04.D: Metal:Oxígeno = 1:2 y similar

TiO2
EspodumenaEspodumena9. Silicatos
09.D: Inosilicatos

LiAlSi2O6
TitanitaTitanita9. Silicatos
09.A: Nesosilicatos

CaTi(SiO4)O
TopacioTopacio9. Silicatos
09.A: Nesosilicatos

Al2(SiO4)(F,OH)2
Wolframita4. Óxidos
04.D: Metal:Oxígeno = 1:2 y similar

(Fe2+)WO4




Yacimientos y localidades de interés

Yacimientos:

El cuarzo aparece con frecuencia formando vetas o filoncillos en las rocas. También son frecuentes geodas, cavidades tapizadas por cristales de cuarzo de formas y coloraciones diversas. Son muy espectaculares las geodas de amatista de Brasil, de donde fueron extraídas toneladas de cuarzo durante la II Guerra Mundial para la elaboración de aparatos de radio. Grandes cristales individuales proceden de Brasil y Madagascar.

En España se han recogido buenos cristales en agrupaciones, en Villasbuenas (Salamanca), lo mismo que en La Cabrera acompañado de buenos cristales de ortosa y en general en muchos puntos de la Sierra de Guadarrama y Somosierra (Madrid) y en Verín y Padrenda (Orense). Con inclusiones de rutilo, son famosos los ejemplares de La Collada en Asturias.

Localidades

  • Gotthard massif -Uri, Valais, Grischun and Ticino cantons, Switzerland - Localidad tipo.
  • San Elías and La Viquita pegmatites, Sierra de la Estranzuela, Chacabuco, San Luis, Argentina
  • Capillitas mine, Andalgalá, Catamarca, Argentina
  • San Elías and La Viquita pegmatites, Sierra de la Estranzuela, Chacabuco, San Luis, Argentina
  • Capillitas mine, Andalgalá, Catamarca, Argentina
  • Cerro Blanco pegmatites, Cordoba, Argentina
  • Cerro Blanco pegmatites, Cordoba, Argentina
  • San Elías and La Viquita pegmatites, Sierra de la Estranzuela, Chacabuco, San Luis, Argentina
  • Capillitas mine, Andalgalá, Catamarca, Argentina
  • San Elías and La Viquita pegmatites, Sierra de la Estranzuela, Chacabuco, San Luis, Argentina
  • Cerro Blanco pegmatites, Cordoba, Argentina
  • Cerro Blanco pegmatites, Cordoba, Argentina
  • Capillitas mine, Andalgalá, Catamarca, Argentina
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Claim 84, Anticline prospect, Ashburton Downs, Western Australia, Australia
  • Princess Mine, Moina, Tasmania, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Mt Bischoff, Waratah, Tasmania, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Prospect Hill, New South Wales, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Princess Mine, Moina, Tasmania, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Biggenden, Queensland, Australia
  • Boddington, Mt Saddleback, Western Australia, Australia
  • White Rocky quarry, 30km east of Adelaide, South Australia, Australia
  • Henty Mine, Tyndall Valley, Tasmania, Australia
  • Spring Creek mine, Flinders Range, South Australia, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Henty Mine, Tyndall Valley, Tasmania, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Mt Bischoff, Waratah, Tasmania, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Claim 84, Anticline prospect, Ashburton Downs, Western Australia, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • 132 North nickel mine, Widgiemooltha, Western Australia, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • White Rocky quarry, 30km east of Adelaide, South Australia, Australia
  • Boddington, Mt Saddleback, Western Australia, Australia
  • 132 North nickel mine, Widgiemooltha, Western Australia, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • Cygnet, Tasmania, Australia
  • Prospect Hill, New South Wales, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Biggenden, Queensland, Australia
  • Spring Creek mine, Flinders Range, South Australia, Australia
  • Cygnet, Tasmania, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Spring Creek mine, Flinders Range, South Australia, Australia
  • Biggenden, Queensland, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Princess Mine, Moina, Tasmania, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Prospect Hill, New South Wales, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Boddington, Mt Saddleback, Western Australia, Australia
  • Claim 84, Anticline prospect, Ashburton Downs, Western Australia, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • 132 North nickel mine, Widgiemooltha, Western Australia, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • Cygnet, Tasmania, Australia
  • Mt Bischoff, Waratah, Tasmania, Australia
  • White Rocky quarry, 30km east of Adelaide, South Australia, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Henty Mine, Tyndall Valley, Tasmania, Australia
  • Princess Mine, Moina, Tasmania, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Mt Bischoff, Waratah, Tasmania, Australia
  • Prospect Hill, New South Wales, Australia
  • Cygnet, Tasmania, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • 132 North nickel mine, Widgiemooltha, Western Australia, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Claim 84, Anticline prospect, Ashburton Downs, Western Australia, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Henty Mine, Tyndall Valley, Tasmania, Australia
  • White Rocky quarry, 30km east of Adelaide, South Australia, Australia
  • Boddington, Mt Saddleback, Western Australia, Australia
  • Biggenden, Queensland, Australia
  • Spring Creek mine, Flinders Range, South Australia, Australia
  • Schellgaden, Salzburg, Austria
  • Rotgülden, Salzburg, Austria
  • Brandrücken, Kärnten, Austria
  • Weitendorf, Steiermark, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Modriach, Graz, Styria, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Brandrücken, Kärnten, Austria
  • Brandrücken, Kärnten, Austria
  • Rotgülden, Salzburg, Austria
  • Modriach, Graz, Styria, Austria
  • Rotgülden, Salzburg, Austria
  • Weitendorf, Steiermark, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Schellgaden, Salzburg, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Weitendorf, Steiermark, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Modriach, Graz, Styria, Austria
  • Modriach, Graz, Styria, Austria
  • Schellgaden, Salzburg, Austria
  • Rotgülden, Salzburg, Austria
  • Brandrücken, Kärnten, Austria
  • Weitendorf, Steiermark, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Schellgaden, Salzburg, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Gralex Quarry, Mont-sur-Marchienne, Hainaut, Belgium
  • Sarolay, Liege, Walloon Brabant, Belgium
  • Nil-St.Vincent, Brabant, Walloon Brabant, Belgium
  • Chaudfontaine, Luettich, Belgium
  • Seilles, Namur, Walloon Brabant, Belgium
  • Opprebais, Brabant, Walloon Brabant, Belgium
  • Terril Saint-Antoine, Boussu, Hainaut, Belgium
  • Constancia mine, Tazna, Sud Chichas, Potosí Dept, Bolivia
  • San José and Itos mines, Oruro Dept., Bolivia
  • Animas mine, Chocoya, Sud-Chicas, Potosí Dept, Bolivia
  • El Desierto mine, Cerro Picoloro, Daniel Campos, Potosí Dept, Bolivia
  • El Dragón mine, Quijarro, Potosí Dept, Bolivia
  • Oruro City, Oruro Dept., Bolivia
  • Viloco mine, Loayza, La Paz, Bolivia
  • Machacamarca mine, Colavi, Saavedra, Potosí Dept, Bolivia
  • Aliada Mine, Colquechata Mt., Chayanta, Potosí Dept, Bolivia
  • Chocaya, Animas-Chocaya, Potosí Dept, Bolivia
  • Pulacayo mine, Huanchaca, Potosí Dept, Bolivia
  • Cerro Rico Mt., Potosí, City, Potosí Dept, Bolivia
  • Siglo Veinte (XX) mine, Llallagua, Bustillo, Potosí Dept, Bolivia
  • Chicote Grande mine, Inquisivi, La Paz, Bolivia
  • Teofilo Otoni, Minas Gerais, Brazil
  • Jove Lauriano mine, Linóplis, Minas Gerais, Brazil
  • Pamaró mine, Minas Gerais, Brazil
  • Alto da Pitora, Galiléia, Minas Gerais, Brazil
  • Alto Benedito Pegmatite, Paraíba, Brazil
  • Telrio Mine, Mendes Pimental, Minas Gerais, Brazil
  • Pedra Preta pit, Brumado mine, Sierra as Eguas, Bahia, Brazil
  • Corrego Frio mine, near Linopolis, Minas Gerais, Brazil
  • Morro Velho Gold mine, Nova Lima, Minas Gerais, Brazil
  • Chapada Diamantina, Serra de Mangabeira, Bahia, Brazil
  • Ouro Preto, Minas Gerais, Brazil
  • Cruzeiro mine, Santa Maria do Suaçui, Poaiá, Minas Gerais, Brazil
  • Urubu pegmatite, Araçuai, Minas Gerais, Brazil
  • Fundao City, Espirito Santo, Minas Gerais, Brazil
  • Sebastião Cristino Mine, Minas Gerais, Brazil
  • Sapucaia pegmatite mine, near Galileia, Minas Gerais, Brazil
  • Boqueirãozinho pegmatite, Parelhas, Rio Grande do Norte, Brazil
  • Corrego do Urucum pegmatite, Minas Gerais, Brazil
  • Lavra da Ilha pegmatite, Taquaral, Minas Gerais, Brazil
  • Zé Pinto prospect, Conselheira Pena, Minas Gerais, Brazil
  • Jacuaracu pegmatite, Lavra de Sr. Jose Pinto, Municipo de Timoteo, Jacuaracu, Minas Gerais, Brazil
  • Jaguaracu Pegmatite, Jaguaracu, Minas Gerais, Brazil
  • Pomba pit, Brumado mine, Sierra as Eguas, Bahia, Brazil
  • Madan, Rhodope Mtns., Plovdiv, Bulgaria
  • Kemp Uranium Mine, Cardiff Township, Haliburton Co., Bancroft, Ontario, Canada
  • Jeffrey pit, Asbestos, Shipton Twp., Richmond Co., Québec, Canada
  • Poudrette quarry, Mt St.-Hilaire, Rouville Co., Québec, Canada
  • Port Radium, Northwest Territories, Canada
  • Parker mine, Notre Dame du Laus, Québec, Canada
  • Nanisivik Mine, Baffin Island, Nunavut, Northwest Territories, Canada
  • Lake George antimony mine, York Co., New Brunswick, Canada
  • Mt Brussihof mine, near Radium, British Columbia, Canada
  • Steep Rock Iron Mine, Atikokan, Ontario, Canada
  • Ackerman mine, Deloro, Hastings Co., Ontario, Canada
  • Mt St.-Hilaire, Rouville Co., Québec, Canada
  • Southern Baffin Island, Nunavut, Northwest Territories, Canada
  • Strange Lake complex, Labrador boundary 250km NEof Schefferville, Québec, Canada
  • Silver Islet mine, Lake Superior, Ontario, Canada
  • Lac Nicolet mine, Ham Sud, Wolfe Co., Québec, Canada
  • Sherbrooke, Québec, Canada
  • Tanco pegmatite, Bernic Lake, Manitoba, Canada
  • Van Silver mine, Brandywine Creek, British Columbia, Canada
  • Thunder Bay area mines, Ontario, Canada
  • East Kemptville Tin Mine, East Kemptville, Yarmouth Co., Nova Scotia, Canada
  • Demix-Varennes quarry, Saint-Amable sill, Varennes, Verchéres Co., Québec, Canada
  • Dundas Quarry, Wentworth Co., Ontario, Canada
  • Woodcox Mine, Bancroft, Monteagle Township, Hastings Co., Ontario, Canada
  • Engineer mine, Tagish Lake, near Atlin, British Columbia, Canada
  • Caland pit, Atikokan, Ontario, Canada
  • Francon quarry, St-Michel distr., Montreal Island, Québec, Canada
  • Highland Bell mine, Beaverdell, British Columbia, Canada
  • Highway 28 Roadcut Near Belton Road, Mayo Township, Bancroft, Hastings Co., Ontario, Canada
  • Rossport, Ontario, Canada
  • Shatford Lake pegmatite, Manitoba, Canada
  • Beaverdell, British Columbia, Canada
  • Sierra Gorda, Chuquicamata, Antofagasta, Chile
  • Chenzou mine, Hunan province, China
  • Hengyang, Hunan province, China
  • Ximeng, Yunnan Province, China
  • Xitieshan deposit, Qaidam Basin (Chaidamu), Qinghai, China
  • Yaogangxian tungsten mine, Yizhang, Hunan Province, China
  • Cong Li, Guangdong Province, China
  • Ezhou, Hubei Province, China
  • Leiyang, Hunan Province, China
  • Taolin, Hunan Province, China
  • Lushi, Hunan Province, China
  • Studenec, Jilemnice, Vychodocesky, Czech Republic
  • Borovec, Zdar nad Sazavou, Maehren, Czech Republic
  • Horni Hostice, Maehren, Czech Republic
  • Horni Slavkov, Karlovy Vary, Czech Republic
  • Hory, Karlovy Vary, Czech Republic
  • Bezdecin, Zelezny Brod, Severocesky, Czech Republic
  • Predborice, Stredocesky kraj, Bohemia, Czech Republic
  • Vlastejovice, Kutna Hora, Stredocesky, Czech Republic
  • Bohutin, Príbram, Stredocesky, Czech Republic
  • Golcuv Jenikov, Kutna Hora, Stredocesky, Czech Republic
  • Vezna, Zdar nad Sazavou, Maehren, Czech Republic
  • Vernerov, Severocesky, Czech Republic
  • Soutesky, Decin, Krusne Hory, Vychodocesky, Czech Republic
  • Trebsko Deposit, Príbram, Stredocesky, Czech Republic
  • Hurky, Stredocesky kraj, Bohemia, Czech Republic
  • Krupka, Krusne Hory, Vychodocesky, Czech Republic
  • Lahost, Teplice, Krusne Hory, Vychodocesky, Czech Republic
  • Krasna Hora nad Vltavou, Príbram, Stredocesky, Czech Republic
  • Policany, Kutna Hora, Czech Republic
  • Kasejovice, Západocesky, Czech Republic
  • Lill mine, Brezove hory (Birkenberg), Príbram, Stredocesky, Czech Republic
  • Doubravice, Jicin, Vychodocesky, Czech Republic
  • Alexander Gallery, Vrancice, Príbram, Stredocesky, Czech Republic
  • Medenec (Kupferberg), Chomutov, Krusne Hory, Vychodocesky, Czech Republic
  • Moldava, Teplice, Krusne Hory, Vychodocesky, Czech Republic
  • Novy rybnik, Pisek, Jihocesky, Czech Republic
  • Nova mine, Hora, Príbram, Stredocesky, Czech Republic
  • Kank, Kutna Hora, Stredocesky kraj, Bohemia, Czech Republic
  • Faroe Islands, Denmark
  • Red a Venn mine, Okehampton, Devon, England
  • Red Gill mine, Caldbeck Fells, Cumbria, England
  • Prince of Wales mine, Calstock, Cornwall, England
  • Providence Iron mine, Long Ashton, Bristol, England
  • Ingray Gill, Caldbeck Fells, Cumbria, England
  • Old Sandbeds Mine, Caldbeck Fells, Cumbria, England
  • Raper Mine, Alport, Derbyshire, England
  • Old Potts Gill mine, Caldbeck Fells, Cumbria, England
  • Parkside Mine, Frizington, Cumbria, England
  • Padstow Consols mine, Padstow, Cornwall, England
  • Port Quin, St. Endellion, Cornwall, England
  • Penberthy Croft mine, St. Hilary, Cornwall, England
  • Shap Pink Quarry, Shap, Cumbria, England
  • Shap Blue Quarry, Shap, Cumbria, England
  • Old Wham Vein, Castleton, Derbyshire, England
  • Wheal Edward, St. Just, Cornwall, England
  • Wheal Rock, St. Agnes, Cornwall, England
  • Wheal Remfry Pit, St.Dennis, Cornwall, England
  • Wheal Owles, St. Just, Cornwall, England
  • Wheal Ludcott, St. Ive, Cornwall, England
  • Wheal Jane, Kea, Truro, Cornwall, England
  • Wheal Gorland, Gwennap, Cornwall, England
  • Wheal Drea, St. Just, Cornwall, England
  • Smallcleugh mine, Nenthead, Cumbria, England
  • Wheal Cock, Botallack, St. Just., Cornwall, England
  • Wet Swine Gill, Caldbeck Fells, Cumbria, England
  • West Pastures Mine, Stanhope, Weardale, Co. Durham, England
  • Florence mine, Egremont, Cumbria, England
  • Weardale, Co. Durham, England
  • Wheal Wrey, Liskeard, Cornwall, England
  • Nether Row Brow, Caldbeck Fells, Cumbria, England
  • New Aplite Quarry, Meldon, Okehampton, Devon, England
  • Dirtlow Rake, Castleton, Derbyshire, England
  • Driggith Mine, Caldbeck Fells, Cumbria, England
  • Dry Gill mine, Caldbeck Fells, Cumbria, England
  • Wheal Nangiles, Bissoe, Cornwall, England
  • Lyme Regis, Dorset, England
  • Dean quarry, St. Keverne, Cornwall, England
  • Low Pike north slopes, Caldbeck Fells, Cumbria, England
  • Lanterdan quarry, Treknow, Tintagel, Cornwall, England
  • Eastern Cliff, Kennack Sands, The Lizard, Cornwall, England
  • Leighton Buzard, Bedfordshire, England
  • Milltown Quarry, Ashover, Derbyshire, England
  • Levant mine, Pendeen, St. Just, Cornwall, England
  • Dulcote Quarry, Wells, Somerset, England
  • Meldon BR Quarry, Okehampton, Devon, England
  • Melbur pit, St. Stephen, Cornwall, England
  • Wheal Penrose, Porthleven, Cornwall, England
  • Hazard Section, Botallack mine, Botallack, St. Just, Cornwall, England
  • New Cliffe Hill quarry, Markfield, Leicestershire, England
  • Healds Wood, Stanton Hill, Nottinghamshire, England
  • Heights mine, Eastgate, Weardale, Co. Durham, England
  • Roughton Gill Mine, Caldbeck Fells, Cumbria, England
  • Hilton mine, Scordale, Cumbria, England
  • Hodbarrow mine, Cumbria, England
  • Rogerley Mine, Frosterley, Weardale, Co. Durham, England
  • Holmbush mine, Stokeclimsland, Cornwall, England
  • New East Wheal Russel, near Tavistock, Devon, England
  • Sandbeds mine, Caldbeck Fells, Cumbria, England
  • Higher Pitts mine, Priddy, Mendip Hills, Somerset, England
  • Dumpy Stone Level, Calbeck Fells, Cumbria, England
  • Beer-Alston, Devon, England
  • Carrock mine, Caldbeck Fells, Cumbria, England
  • Botallack, St. Just, Cornwall, England
  • Brandelhow Mine, Brandlehow, Cumbria, England
  • Bodelva Pit., Nr. St. Blazey., Cornwall, England
  • Bonsall Moor Quarry, Winster, Derbyshire, England
  • Boltsburn mine, Rookhope, Weardale, Co. Durham, England
  • Cligga Head, Perranzabuloe, Cornwall, England
  • Barrow Mine, Braithwaite, Cumbria, England
  • Bounds Cliff, St. Endellion, Cornwall, England
  • Brae Fell mine, Caldbeck Fells, Cumbria, England
  • Goldscope Mine, Newlands Valley, Cumbria, England
  • Tintagel, Cornwall, England
  • Stoneycroft Mine, Braithwaite, Cumbria, England
  • Cammock Eals mine, Stanhope, Weardale, Co. Durham, England
  • Arm O'Grain, Caldbeck Fells, Cumbria, England
  • Cannington Park Quarry, Bridgewater, Somerset, England
  • Colemans Quarry, Holwell, Nr. Frome, Somerset, England
  • Blackdene mine, Ireshopeburn, Weardale, Co. Durham, England
  • Beckermet Mine, Egremont, Cumbria, England
  • Blue Circle Cement Quarry, Eastgate, Weardale, Co. Durham, England
  • Croft Gothal mine, St. Hilary, Cornwall, England
  • Buckbarrow Beck Veins, Waberthwaite, Cumbria, England
  • Burgham mine, Shelve, Shropshire, England
  • Calton Hill Quarry, Buxton, Derbyshire, England
  • Brandy Gill Lead mine, Caldbeck Fells, Cumbria, England
  • Castle Nook Mine, Newlands Valley, Cumbria, England
  • Brownley Hill Pb-Zn mine, Nenthead, Cumbria, England
  • Cambokeels mine, near Eastgate, Weardale, Co. Durham, England
  • Alston Moor, Cumbria, England
  • Greenside mine, Patterdale, Cumbria, England
  • Gregory mine, Ashover, Derbyshire, England
  • Winford Ochre Pit, Chew Magna, Somerset, England
  • Windy Brow Vein, Tynehead, Cumbria, England
  • Whitfield Brow Mines, Weardale, Co. Durham, England
  • Whiteoak Beck, High Nook, Loweswater, Cumbria, England
  • Mountfield Mine, Mountfield, Sussex, England
  • Eskett mine, Cumbria, England
  • Wapping mine, Matlock Bath, Derbyshire, England
  • Force Crag Mine, Keswick, Cumbria, England
  • Mt Wellington mine, Bissoe, Cornwall, England
  • Frazer's Hush mine, Rookhope, Weardale, Co. Durham, England
  • Virtuous Lady mine, Buckland Monachorum, Devon, England
  • Virginia Pit, St.Stephen, Cornwall, England
  • Frizington Mine, Eskett, Cumbria, England
  • Wheal Concord, Blackwater, Cornwall, England
  • Mount Wellington mine, Bissoe, Cornwall, England
  • Wyndham Pit, Nr. Egremont, Cumbria, England
  • Greystones quarry, Lezant, Cornwall, England
  • Mulberry Stockworks, Lanivet, Cornwall, England
  • South Crofty mine, Camborne, Illogan, Cornwall, England
  • Hard Rigg Edge, Melmerby Fell, Yorkshire, England
  • Ladywell mine, Shelve, Shropshire, England
  • Groverake mine, Rookhope, Weardale, Co. Durham, England
  • Gunheath China Clay Pit, Stenalees, St.Austell, Cornwall, England
  • St Ives Consols Mine, St.Ives, Cornwall, England
  • Yarlside Mines, Dalton in Furness, Cumbria, England
  • Fall Gate quarry, near Ashover, Derbyshire, England
  • Yewthwaite Mine, Newlands Valley, Cumbria, England
  • Spothow Gill, Eskdale, Cumbria, England
  • Springhill quarry, Peldar Tor, Whitwick, Leicestershire, England
  • Hampstead Farm quarry, Chipping Sodbury, Gloucestershire, England
  • Jokisivu (Kujankallio), Huittinen, Turku-Pori, Finland
  • Le Beix, Puy-de-Dôme, France
  • Saint-Aubain-des-Châteaux, Loire-atlantique, France
  • Cap Garonne, Le Pradet, Var, France
  • Mas d'Alary, Hérault, Languedoc-Roussillon, France
  • Chessy-les-Mines, Rhône, Rhône-Alpes, France
  • Val d'Isere, Dauphine, France
  • Tistoulet mine, Padern, Aude, Languedoc-Roussillon, France
  • Chazelle, Pontgibaud, Puy-de-Dôme, Auvergne, France
  • Trimouns Talc mine, Ariège, Midi-Pyrénées, France
  • Monsols, Rhône, Rhône-Alpes, France
  • Montebras, Soumans, Creuse, Limousin, France
  • Pyrenees Antlantiques, France
  • Falgayrolles, Aveyron, Midi-Pyrénées, France
  • Jas Roux, Valgaudemar, Haute-Alpes, France
  • Argentiere Glacier, Chamonix, Haute-Savoie, Rhône-Alpes, France
  • Les Farges mine, Corrèze, Limousin, France
  • St. Andreasberg, Hartz Mts, Niedersachsen, Germany
  • Hallwangen, Freudenstadt, Baden-Wuerttemberg, Germany
  • Steinbissäge, Gremmelsbach, Kinzigtal, Baden-Wuerttemberg, Germany
  • Glücksrad mine, Clausthal-Zellerfeld, Harz Mts, Sachsen, Germany
  • Glückauf mine, Bad Grund, Harz Mts, Sachsen, Germany
  • Anna mine, Oberharmersbach, Kinzigtal, Baden-Wuerttemberg, Germany
  • Artenberg quarry, Kinzigtal, Baden-Wuerttemberg, Germany
  • Herzog Friedrich mine, Reinerzau, Alpirsbach, Baden-Wuerttemberg, Germany
  • Kälbelberg, Baden-Baden, Baden-Wuerttemberg, Germany
  • Alte Gabe Gottes, Reinerzau, Alpirsbach, Baden-Wuerttemberg, Germany
  • Peter quarry, Baden-Baden, Baden-Wuerttemberg, Germany
  • Friedenstein mine, Ruhla, Bad Salzungen, Thüringen, Germany
  • Fohberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Hechtsberg quarry, Kinzigtal, Baden-Wuerttemberg, Germany
  • Silberbrünnle mine, Kinzigtal, Baden-Wuerttemberg, Germany
  • Hennenloch mine, Kinzigtal, Baden-Wuerttemberg, Germany
  • Schmidt quarry, Ruhla, Bad Salzungen, Thüringen, Germany
  • Schweina-Glücksbrunn, Bad Liebenstein, Eisenach, Thüringen, Germany
  • Herbstglück Stollen mine, Goldberg, Friedrichroda, Bad Salzungen, Thüringen, Germany
  • Heimberg quarry, Möncheholz, Langelsheim, Harz Mts, Sachsen, Germany
  • Seebachfelsen, Friedrichroda, Bad Salzungen, Thüringen, Germany
  • Gangzug Prinzbach, Kinzigtal, Baden-Wuerttemberg, Germany
  • Biseschacht am Iberg, Bad Grund, Harz Mts, Sachsen, Germany
  • Waldstadion, Schramberg, Kinzigtal, Baden-Wuerttemberg, Germany
  • Rammelsberg mine, Goslar, Harz Mts, Sachsen, Germany
  • Amalienstollen mine, Nordrachtal, Kinzigtal, Baden-Wuerttemberg, Germany
  • Erzengel Gabriel mine, Einbachtal, Kinzigtal, Baden-Wuerttemberg, Germany
  • Gottlob mine, Friedrichroda, Bad Salzungen, Thüringen, Germany
  • Kirchheimerstollen, Müllenbach, Baden-Baden, Baden-Wuerttemberg, Germany
  • Lautenthaler Hütte, Langelsheim, Harz Mts, Sachsen, Germany
  • Orberg-Badberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Mühlrain, Ruhla, Bad Salzungen, Thüringen, Germany
  • Königswart, Freudenstadt, Baden-Wuerttemberg, Germany
  • Nesselhof, Bad Salzungen, Thüringen, Germany
  • Nesselgrund quarry, Schnellbach, Bad Salzungen, Thüringen, Germany
  • Krettnich, Saarland, Germany
  • Otto mine, Schottenhöfen, Kinzigtal, Baden-Wuerttemberg, Germany
  • Daniel mine, Schneeberg, Sachsen, Germany
  • Dreikönigstern, Reinerzau, Alpirsbach, Baden-Wuerttemberg, Germany
  • Floßberg mine, Bad Lauterberg, Harz Mts, Sachsen, Germany
  • Rötenbach quarry, Alpirsbach, Baden-Wuerttemberg, Germany
  • Hilfe Gottes mine, Wiemannsbucht, Bad Grund, Harz Mts, Sachsen, Germany
  • Herzog-Julius-Hütte, Goslar, Harz Mts, Sachsen, Germany
  • Immelsbacher Höhe, Hornberg, Gutachtal, Kinzigtal, Baden-Wuerttemberg, Germany
  • Himmelfürst mine, Freiberg, Sachsen, Germany
  • Huneberg quarry, Bad Harzburg, Harz Mts, Sachsen, Germany
  • Roßgrabeneck, Kinzigtal, Baden-Wuerttemberg, Germany
  • Bärensteinbruch quarry, Radautal, Bad Harzburg, Harz Mts, Sachsen, Germany
  • Riekensglück, Schmalenbergsklippe, Bad Harzburg, Harz Mts, Sachsen, Germany
  • Rinderberg im Lautenbachtal, S Struth-Helmershof, Schmalkalden, Thüringen, Germany
  • Christophstal, Freudenstadt, Baden-Wuerttemberg, Germany
  • Vasilikon, Andros, Aegean Islands, Greece
  • Hilarion adit, Agios Konstandinos, Laurion, Attica, Greece
  • Chondro Vuono, Milos, Kikladhes, Southern Aegean, Greece
  • Cape Vani, Milos, Kikladhes, Southern Aegean, Greece
  • Ivigtut, Arsuk Fjord, Greenland
  • Fiskenaesset, Greenland
  • Fiskenaesset, Nuuk, Greenland
  • Lonavala, Poona, India
  • Killiney, Co. Dublin, Ireland
  • Silvermines district, Co. Tipperary, Ireland
  • North Laxey Mine, Laxey, Isle of Man
  • Great Laxey Mine, Laxey, Isle of Man
  • North Bradda Mine, Port Erin, Bradda Head, Isle of Man
  • South Bradda Mine, Port Erin, Bradda Head, Isle of Man
  • Val Graveglia, Liguria, Italy
  • Facciatoia quarry, Isle of Elba, Italy
  • Punta Bianca, La Spezia, Italy
  • Brosso mine, Ivrea, Piedmont, Italy
  • Seravezza, Tuscany, Italy
  • San Giacomo, Vallone di Gilba, Val Varaita, Dora Maira massif, Parigi, Martiniana Po, Piemonte, Italy
  • Fonte del Prete pegmatite, San Piero in Campo, Elba, Tuscany, Italy
  • Carrara, Tuscany, Italy
  • Grotta d'Oggi, Elba, Tuscany, Italy
  • Pizzo Cervandone (Cherbadung), Alpe Devero, Piemonte, Italy
  • Baveno, Lago Maggiore, Piedmont, Italy
  • Mount Vesuvius, Naples, Campania, Italy
  • Molinello mine, Val Graveglia, Liguria, Italy
  • Ligurian Briançonnais Domain, Maritime Alps, Italy
  • Nascio, Val Graveglia, Liguria, Italy
  • Cerchiara manganese mine, Val di Vara, Liguria, Italy
  • Ashio mine, Ashio-machi, Kamitsuga, Tochigi Pref., Japan
  • Ani mine, Ani, Kitaakita, Akita Pref., Japan
  • Arakawa mine, Kyouwa-machi, Senboku, Akita Pref., Japan
  • Kyonosawa, Mitomi-mura, Higashiyamanashi, Yamanashi Pref., Japan
  • Narushima Island, Minamimatsuura, Nagasaki Pref., Japan
  • Aktas, Dzhezkazgan, Kazakhstan
  • Sarbay silver mine, Rudni, Kusteni Oblast, Kazakhstan
  • Kara Oba, Karaganda Oblast, Kazakhstan
  • Taehwa mine, Neungam-ri, Angseong-myeon, Chungju, Chungcheongbukdo, South Korea
  • Sam Nam Myeon, Ulju Goon, Kyung sang Nam Do, Korea
  • Eonyang, Kyeongsangnamdo, South Korea
  • Khaidarkan deposit, Kyrgyzstan
  • Djelisu massif, Osh region, Khodzha-Ochkan river basin, Kyrgyzstan
  • Chaidarkan, Alai, Kyrgyzstan
  • Chauvay, Alai, Kyrgyzstan
  • Pamir mts, Kyrgyzstan
  • Allchar, Macedonia
  • Antandrokomby pegmatite, Manandona River, Sahatany Valley, Madagascar
  • Antsongombato, Betafo, Madagascar
  • Andilamena, Toamquina, Madagascar
  • Ambatofinandrahana, Madagascar
  • Zomba district, Malawi
  • Mt Malosa, Zomba, Malawi
  • Boleo, Santa Rosalia, Baja California, Mexico
  • Santin mine, Santa Catarina, Cerro de las Fajas, Guanajuato, Mexico
  • Mina Noche Buena, near Mazapil, Zacatecas, Mexico
  • Ahumada & Erupcion mines, Sierra de Los Lamentos, Chihuahua, Mexico
  • Fresnillo, Zacatecas, Mexico
  • Veracruz, Mexico
  • Concepcion de Oro, Zacatecas, Mexico
  • Hidalgo de Parral, Chihuahua, Mexico
  • Mina Ojuela, Mapimi, Durango, Mexico
  • Aquilesas Serdan, Chihuahua, Mexico
  • Matehuala, San Luis Potosi, Mexico
  • Charcas, San Luis Potosi, Mexico
  • Guerrero, Mexico
  • Mina Bonanza, Concepcion del Oro, Zacatecas, Mexico
  • Catorce, San Luis Potosi, Mexico
  • Cerro de Mercado, Durango, Mexico
  • El Cobre Mine, Concepcion del Oro, Zacatecas, Mexico
  • Batopilas district, Chihuahua, Mexico
  • El-Kbab, Atlas Mts., Morocco
  • Mogok, Ohngaing, Sagaing, Myanmar Republic
  • Tsumeb mine, Tsumeb, Otavi, Namibia
  • Abaneb West mine, Otavi, Namibia
  • Arnhem Cave, Windhoek, Namibia
  • Kombat mine, Tsumeb, Otavi, Namibia
  • Berg Aukas, Otavi, Namibia
  • Watsons Beach, Otago, New Zealand
  • Kongsberg, Buskerud, Norway
  • Einerkilen, Flåt, Evje, Aust-Agder, Norway
  • Matskorhae, Ullensvang Statsallmenning, Hordaland Fylke, Norway
  • Lake Gjerdingen, Nordmarka, Oslo, Norway
  • Buö, Arendal, Froland, Aust-Agder, Norway
  • Evje-Ivedal, Iveland, Aust-Agder, Norway
  • Almgjotheii, Norway
  • Hardangervidda, Norway
  • Seljord, Telemark, Norway
  • Ghundao hill, Katlang, Mardan, North-West Frontier, Pakistan
  • Wama, near Toei, South Waziristan, Afghanistan
  • Shengus, Skardu Road, Gilgat, Northern Areas, Pakistan
  • Shigar Valley, Skardu Road, Gilgat, Pakistan
  • Toyee, Waziristan, North-West Frontier, Pakistan
  • Alchuri village, Shigar valley, Baltistan, Pakistan
  • Alchuri, Shigar Valley, Skardu Road, Gilgat, Pakistan
  • Gilgat, Northern Areas, Pakistan
  • Casapalca Mine, Lima Dept., Peru
  • Castro Virreyana mine, near Lima, Peru
  • Castrovirreyana mine, near Lima, Peru
  • Pasta Bueno mine, Ancash Dept., Peru
  • Huaron mine, Pasco Dept., Peru
  • Uchucchacua District, Dos de mayo Prov., Huanuco Dept., Peru
  • Milpo mine, Pasco Dept., Peru
  • Nuevo Mundo, Ancash Dept., Peru
  • Zabkowice Slaskie, Walbrzych, Poland
  • Strzegom, Walbrzych, Poland
  • Panasqueira mine, Panasqueira, Beira-Beixa, Portugal
  • Boldut Mine, Cavnic, Maramures Co., Romania
  • Puiva, Saranpual, Polar Urals, Russia
  • Malkanskiy, Transbaikal, Siberia, Russia
  • Tokovaya, Ekaterinburg, Ural Mts., Russia
  • Slyudyanka complex, Lake Baikal region, Zabaikalye (Transbaikal), Siberia, Russia
  • Srednyaya Padma deposit, Karelia, Russia
  • Verchniy Mine, Dal'negorsk, Primorskiy Kray, Russia
  • Nikolaevskiy, Dal'negorsk, Primorskiy Kray, Russia
  • Mutnovskoe, Kamchatka, Russia
  • Murun massif, Davan, Torgo river basin, Aldan Shield, Yakutia, Siberia, Russia
  • Mt Alluaiv and Mt. Karnasurt, Lovozero alkaline massif, Kola Peninsula, Russia
  • Sinerechenskoye deposit, Primorskiy Kray, Russia
  • Paiva, Saranpual, Ural Mts., Russia
  • Sadoviy, Dal'negorsk, Primorskiy Kray, Russia
  • Rodnikovoe, Kamchatka, Russia
  • Sentyabr'skiy, Dal'negorsk, Primorskiy Kray, Russia
  • Ural Mountains, Russia
  • Vodorazhdelnye, Menza district, Transbaikal, Siberia, Russia
  • 1st Sovietski mine, Dal'negorsk, Primorskiy Kray, Russia
  • 2nd Sovietski mine, Dal'negorsk, Primorskiy Kray, Russia
  • Kanozero area, Keivy, Kola Peninsula, Russia
  • Dodo mine, Polar Urals, Tyumen Oblast, Russia
  • Karasug, Tannu-Ola, Tuva, Siberia, Russia
  • Alabashka, Yekaterinburg Oblast', Russia
  • Bezymyannyy, Amur, Yakutia, Russia
  • Alabashka, Ekaterinberg, Sverdlovsk, Ural Mts., Russia
  • Aktash mercury deposit, Altai Mts, Russia
  • Bor, Dal'negorsk, Primorskiy Kray, Russia
  • Adui, Ural Mts., Russia
  • Danburity, Dal'negorsk, Primorskiy Kray, Russia
  • Dal'negorsk, Primorskiy Kray, Russia
  • Aldan Shield, Yakutiya, Siberia, Russia
  • Ilmen-Vishnevye Mts Alkaline massif, Southern Urals, Russia
  • Kochkar, Chelyabinsk, Russia
  • Sgurr Nam Boc, Isle of Skye, Scotland
  • Hartfield Moss, Strathclyde, Scotland
  • Silver Glen, Clackmannanshire, Scotland
  • High Prin Mine, Wanlock Dod, Wanlockhead, Dumfries and Galloway, Scotland
  • New Glencrieff Mine, Wanlockhead, Dumfries & Galloway, Scotland
  • Orrock Quarry, Kirkcaldy, Fife, Scotland
  • Eas a Bradain, Luib, Isle of Skye, Scotland
  • Kinharvie Burn, Dumfries, Dumfries and Galloway, Scotland
  • Muirshiel Mine, Renfrewshire Heights, Scotland
  • Ardownie quarry, Monifieth, Tayside, Scotland
  • Auchenlongford Haematite Mine, Sorn, East Ayrshire, Scotland
  • Piper's Cove, Solway Firth, Scotland
  • Whitesmith mine, Strontian, Argyll & Bute, Scotland
  • Hopeful vein, Leadhills, Dumfries and Galloway, Scotland
  • Iron/copper trial, Kilchrist, Broadford, Isle of Skye, Scotland
  • Goat Quarry, Aberdour, Fife, Scotland
  • Coir Loch Kander, Braemar, Grampian, Scotland
  • Coire Buidhe, Glen Creran, Argyll & Bute, Scotland
  • Mannoch Hill Mine, Lesmahgow, South Lanarkshire, Scotland
  • Leadhills-Wanlockhead district, Strathclyde/Dumfries and Galloway, Scotland
  • Boyleston Quarry, Barrhead, Glasgow, Scotland
  • Marsco, Sligachan, Isle of Skye, Scotland
  • Marble Quarries (granite), Torrin, Isle of Skye, Scotland
  • Creag Brimishgan, Loch Na Keal, Isle of Mull, Scotland
  • Glen Sannox, Isle of Arran, Scotland
  • Port Glasgow, Renfrewshire, Scotland
  • Trearne Quarry, Beith, Ayrshire, Scotland
  • Rhuba a'Mhill, Isle of Islay, Scotland
  • Glencrieff Mine, Wanlockhead, Dumfries and Galloway, Scotland
  • Loanhead quarry, near Beith, Strathclyde, Scotland
  • Pezinok Mine, Malé Karpaty Mts, Slovakia
  • Viborlat Mts, ??, Slovakia
  • Idria, Carniola, Slovenia
  • Wessels mine, Kalahari Mn field, Kuruman Hill, Cape Province, South Africa
  • Elandsrand Gold Mine, West Wits Line, South Africa
  • Palabora mine, Loolekop, Transvaal, South Africa
  • Nababip, Springbok, Cape Province, South Africa
  • Broken Hill mine, Aggeneys, Cape Province, South Africa
  • Messina, Transvaal, South Africa
  • Horcajo mines, Ciudad Real, Spain
  • Oriheula, Murcia, Spain
  • Aguilar de Río Alhama, La Rioja, Spain
  • Långban mines, Bergslagen ore district, Värmland, Sweden
  • Arvigo, Val Calanca, Graubünden, Switzerland
  • Falotta, Sursass, Tinizong, Grischun (Graubünden), Switzerland
  • Vallegia Glacier, Val Bedretto, Ticino, Switzerland
  • Alpe Spoda, Ticino, Switzerland
  • Alpine Vein, Pizzo dill Arzo, Cavagnoli Glacier, Val Bavona, Ticino, Switzerland
  • Lengenbach quarry, Binntal, Valais, Switzerland
  • Ritterpass, Valais, Switzerland
  • Mt Cherbadung, Binntal, Valais, Switzerland
  • Kollergraben, Binntal, Valais, Switzerland
  • Cavradi-Schlucht, Graubünden, Switzerland
  • St. Gothard, Ticino, Switzerland
  • Chang-Len level 3, Chinkuahshih Mine, Jui-Fang Town, Taipei Co., Taiwan
  • Mika pegmatite, Rangkul' Highlands, Eastern Pamirs, Tajikistan
  • Dara-i-Pioz, Alayskiy Range, Garm, Tajikistan
  • Stardust/Deer Creek Mines, Glenrock, Co.Converse, Wyoming, USA
  • Staples Road Manganese bed, Cumberland, Providence Co., Rhode Island, USA
  • Staples mine, Topsham, Sagadahoc Co., Maine, USA
  • Speckled Mt. localities, Peru, Oxford Co., Maine, USA
  • Stanislaus Mine, Carson Hill Area, Calaveras Co., California, USA
  • Spodumene Brook locality, Newry, Oxford Co., Maine, USA
  • Standard mine, Alexandria, Grafton Co., New Hampshire, USA
  • Starrett mines, Warren, Knox Co., Maine, USA
  • State Route 30 locality, Long Lake, Hamilton Co., New York, USA
  • Steamboat Springs, Washoe Co., Nevada, USA
  • Standpipe Hill Quarries, Topsham Township, Sagadahoc Co., Maine, USA
  • South Baldface Mt. Phenakite locality, Chatham, Carroll Co., New Hampshire, USA
  • Small Point mine, Georgetown, Sagadahoc Co., Maine, USA
  • Smith Granite quarry, Westerly, Washington Co., Rhode Island, USA
  • Smith mine, Auburn, Androscoggin Co., Maine, USA
  • Smuggler Vein, Smuggler Union Consolidated mine, Marshall Basin, Telluride District, San Miguel Co., Colorado, USA
  • Snake River/Peru, Montezuma, Summit Co., Colorado, USA
  • Stafford Court House, Virginia, USA
  • Square Pit, Topsham, Sagadahoc Co., Maine, USA
  • Spruce Pine, Mitchell Co., North Carolina, USA
  • Grant mine, Acworth, Sullivan Co., New Hampshire, USA
  • Grape Creek area, Fremont Co., Colorado, USA
  • Graves mine, Topsham, Sagadahoc Co., Maine, USA
  • Graves Mt., Lincoln Co., Georgia, USA
  • Grey Horse Mine, Kay Spring Canyon, Arizona, USA
  • Great Notch Quarry, Little Falls, Passaic Co., New Jersey, USA
  • Grenci-Ellis quarry, Mount Desert, Hancock Co., Maine, USA
  • Green Ledges localities, West Milan, Coos Co., New Hampshire, USA
  • Green Monster Mountain, Prince of Wales Island, Alaska, USA
  • Green Mountain Mine, Prince of Wales Island, Alaska, USA
  • Greene's Farm garnet Mine, Southbury, Litchfield Co., Connecticut, USA
  • General Area, Picher/Commerce/Quapaw/Miami/Peoria, Ottowa Co., Oklahoma, USA
  • Great Brook prospect, Newry, Oxford Co., Maine, USA
  • Stanley Mine, Idaho Springs District, Clear Creek Co., Colorado, USA
  • Tamminen mine, Greenwood, Oxford Co., Maine, USA
  • Spruce Claim, King Co., Washington, USA
  • Granite Creek, Lolo Hot Springs Area (MIssoula arae), Granite Co., Montana, USA
  • Sneech Pond Copper mine, Cumberland, Providence Co., Rhode Island, USA
  • Susanville, Grant Co., Oregon, USA
  • Swain's Notch Quartz Crystal locality, Rumford, Oxford Co., Maine, USA
  • Swamp mines, Topsham, Sagadahoc Co., Maine, USA
  • Swan Prospect, Pisgah National Forest, Buncombe Co., North Carolina, USA
  • Swan's Falls locality, Fryeburg, Oxford Co., Maine, USA
  • Monarch mine, Alexandria, Grafton Co., New Hampshire, USA
  • Sunnyside mine, Silverton Mining District, Howardsville, San Juan Co., Colorado, USA
  • Stinchfield mine, Minot, Androscoggin Co., Maine, USA
  • Skookumchuck dam, Bucoda & Tenino, Thurston Co., Washington, USA
  • Sterling Brook/StoneyBrook, Warren Twp., Somerset Co., New Jersey, USA
  • Sterling Hill and Franklin Furnace, Sussex Co., New Jersey, USA
  • Sterling Mine, Antwerp, St.Lawrence Co., New York, USA
  • Stevenson Bennett Mine etc, Organon Area, Dona Ana Co., New Mexico, USA
  • Stewart Mine, Butte, Silver Bow Co., Montana, USA
  • Sugar Grove, Pendelton Co., West Virginia, USA
  • Stillwater complex, Benbow Area, Stillwater Co., Montana, USA
  • Sturtevant mine, Minot, Androscoggin Co., Maine, USA
  • Sunshine mine, Kellogg, Shoshone Co., Idaho, USA
  • Styles Mt. locality, Stoneham, Oxford Co., Maine, USA
  • Spor Mt., Nevada, USA
  • Songo Pond mine, Albany, Oxford Co., Maine, USA
  • Stephenson-Bennett mine, Organ District, Dona Ana Co., New Mexico, USA
  • South Juanita Mine, Magdalena district, Socorro Co., New Mexico, USA
  • South Percy Peak locality, Stratford, Coos Co., New Hampshire, USA
  • South Twin Mt. locality, Rumford, Oxford Co., Maine, USA
  • South Warren Spodumene locality, Warren, Knox Co., Maine, USA
  • South Waterford Mica prospect, Waterford, Oxford Co., Maine, USA
  • Snowbird/Mary Ellen Mine, Atlantic City District, Fremont Co., Wyoming, USA
  • Surl, Person Co., North Carolina, USA
  • Stearns mine, Albany, Oxford Co., Maine, USA
  • Sullivan Granite quarry, Bradford, Westerly, Washington Co., Rhode Island, USA
  • Summit Mine, Broadwater Co., Montana, USA
  • Sunday Morning prospect, Carbon Co., Wyoming, USA
  • Sunlight copper district, Park Co., Wyoming, USA
  • Sunnybrook Mine, Cherry Creek district, Yavapai Co., Arizona, USA
  • Steere Farm, Harrisville, Burrillville, Providence Co., Rhode Island, USA
  • Grand Reef mine, Laurel Canyon, Aravaipa mining distr., Graham Co., Arizona, USA
  • Hurricane Mt. localities, North Conway, Carroll Co., New Hampshire, USA
  • Howe Ledge prospect, Dixfield, Oxford Co., Maine, USA
  • Hugo Mine, Keystone, Pennington Co., South Dakota, USA
  • Hunting Hill quarry, Rockville, Montgomery Co., Maryland, USA
  • Horseshoe Island Calc-Silicate locality, Winthrop, Kennebec Co., Maine, USA
  • Goochland Area mines, Goochland Co., Virginia, USA
  • Grace Mine, Morgantown, Berks Co., Pennsylvania, USA
  • Goddard Ledge mines, Rumford, Oxford Co., Maine, USA
  • Gogan prospects, Mexico, Oxford Co., Maine, USA
  • Gold Hill District, Gold Hill, Boulder Co., Colorado, USA
  • Gold Hill mine, Tooele Co., Utah, USA
  • Golden Fleece mine, near Lake City, Hinsdale Co., Colorado, USA
  • Glove Mine, San Rita Mts., Santa Cruz Co., Arizona, USA
  • Goldsmith Mine, Buncombe Co., North Carolina, USA
  • Glendale Quarry, Haverford Township, Delaware Co., Pennsylvania, USA
  • Goodall/Webster, Sanford, York Co., Maine, USA
  • Goodhope mine, South Pass-Atlantic City gold district, Fremont Co., Wyoming, USA
  • Howe Hill Nickel mine, Rumford, Oxford Co., Maine, USA
  • Howard mine, Greenwood, Oxford Co., Maine, USA
  • Hodsden Granite quarry, Fryeburg, Oxford Co., Maine, USA
  • Ione pegmatite prospect, Albany Co., Wyoming, USA
  • Iowa Mine, Silver Lake Area, San Juan Co., Colorado, USA
  • Irish Creek Tin Mines, Vesuvius, Rockbridge Co., Virginia, USA
  • Irish mine, Buckfield, Oxford Co., Maine, USA
  • Irish prospect, Paris, Oxford Co., Maine, USA
  • Iron King Mine, Arizona, USA
  • Indian Mountain, Cherokee Co., Alabama, USA
  • House Mica mine, Peru, Oxford Co., Maine, USA
  • Harlow mine, Hebron, Oxford Co., Maine, USA
  • Homestake Mine etc, Ambrosia Lake District, McKinley Co., New Mexico, USA
  • Hooper Ledge prospect, Paris, Oxford Co., Maine, USA
  • Hoosier Stone Quarry, Salem, Lawrence Co., Indiana, USA
  • Horse Creek iron meteorite, Baca Co., Colorado, USA
  • Horse Hill locality, Norway, Oxford Co., Maine, USA
  • Idarado Mine, Ouray District, San Miguel Co., Colorado, USA
  • Hot Springs, Arkansas, USA
  • Goose Creek Quarry, Loudoun Co., Virginia, USA
  • Goshen, Hampshire Co., Massachusetts, USA
  • Hamburg Mine, Trigo Mts., Yuma Co., Arizona, USA
  • Gross Prospect, Greenwood, Oxford Co., Maine, USA
  • Groundhog Mine, Vanadium, Grant Co., New Mexico, USA
  • Gustin mine, Topsham, Sagadahoc Co., Maine, USA
  • Guy Johnson mine, Albany, Oxford Co., Maine, USA
  • Gypsy Queen Mine, Oreana, Pershing Co., Nevada, USA
  • Haakenen mine, Sumner, Oxford Co., Maine, USA
  • Governor Pit, Albany, Carroll Co., New Hampshire, USA
  • Haggett mine, Edgecomb, Lincoln Co., Maine, USA
  • Greenlaw mine, Auburn, Androscoggin Co., Maine, USA
  • Hamme Tungsten Mine, Vance Co., North Carolina, USA
  • Hansen Creek, King Co., Washington, USA
  • Harden-Keith-Small prospect, Township E, Franklin Co., Maine, USA
  • Harding Hill prospects, Stoneham, Oxford Co., Maine, USA
  • Harding Mine, Dixon, Taos Co., New Mexico, USA
  • Hackett prospect, Minot, Androscoggin Co., Maine, USA
  • Getchell Mine, Golconda, Humbolt Co., Nevada, USA
  • Given #2 mine, Topsham, Sagadahoc Co., Maine, USA
  • Given #1 mine, Topsham, Sagadahoc Co., Maine, USA
  • Government Gravel pits, Albany, Carroll Co., New Hampshire, USA
  • Harris Quarry, Lincoln, Providence Co., Rhode Island, USA
  • Golden Horn Batholith, Washington Pass, Okanogen Co., Washington, USA
  • Gibbonsville Area, Lehmi Co., Idaho, USA
  • Iron Mountain Mine, Iron Mountain, Missouri, USA
  • General, Mesabi Iron Range, Itasca & St.Louis Co., Minnesota, USA
  • General, West Virginia, USA
  • Genral Electric propspect, Albany, Oxford Co., Maine, USA
  • George Hibbs prospect, Hebron, Oxford Co., Maine, USA
  • George-Funk mica and Funk mica pegmatite prospects, Albany Co., Wyoming, USA
  • Glover mines, Paris, Oxford Co., Maine, USA
  • Getchell Mt. prospect, Lakeville, Penobscot Co., Maine, USA
  • Grace Walker Mine etc, Picher/Miami, Ottawa Co., Oklahoma, USA
  • Giddings mine, Minot, Androscoggin Co., Maine, USA
  • Gillette quarry, Haddam Neck, East Hampton, Middlesex Co., Connecticut, USA
  • Gillman District, Colorado, USA
  • Great Southern Mine, Wickenberg, Yavapai Co., Arizona, USA
  • Washington, Litchfield Co., Connecticut, USA
  • Waisaren quarry, Dreenwood, Maine, USA
  • Warren Nickel prospect, Warren, Knox Co., Maine, USA
  • Walker Valley, Skagit Co., Washington, USA
  • White Caps/Outlaw Mines etc, Manhattan, Nye Co., Nevada, USA
  • Wallace/Dixon Eutis/Southern Mines etc, Kings Creek, Cherokee County, South Carolina, USA
  • Walter Cook mine, Lovell, Oxford Co., Maine, USA
  • Wanskuck Granite quarry, Providence, Providence Co., Rhode Island, USA
  • War Bonnet copper district, Converse Co., Wyoming, USA
  • Wardwell mine, Albany, Oxford Co., Maine, USA
  • Waldo District, Josephine Co., Oregon, USA
  • Wise Mine, Westmoreland, Cheshire Co., New Hampshire, USA
  • Wheeler mine, Gilead, Oxford Co., Maine, USA
  • William Willes #2 mine, Topsham, Sagadahoc Co., Maine, USA
  • William Willes #3 mine, Topsham, Sagadahoc Co., Maine, USA
  • Williams mine, Edgecomb, Lincoln Co., Maine, USA
  • Williams Property, Pentonville, Coosa Co., Alabama, USA
  • Waisanen mine, Greenwood, Oxford Co., Maine, USA
  • Wah Wah Mountain range, Utah, USA
  • Wadhams-Tucker mine, Alexandria, Grafton Co., New Hampshire, USA
  • Waterbury, Washington Co., Vermont, USA
  • Waterford, North Smithfield, Providence Co., Rhode Island, USA
  • Wausau Plateau, Rib Mountain, Marathon Co., Wisconsin, USA
  • Warren Mill Canal locality, Gorham, Cumberland Co., Maine, USA
  • Weddle pegmatite claims, Albany Co., Wyoming, USA
  • Warren Farm, Alexander Co., North Carolina, USA
  • Wentworth mine, Hartford, Oxford Co., Maine, USA
  • West Maroon Pass, Colorado, USA
  • Westinghouse mine, Buckfield, Maine, USA
  • Westmorelan, Cheshire Co., New Hampshire, USA
  • Weymouth Hill locality, Stoneham, Oxford Co., Maine, USA
  • Wharton Mine, Mount Holly Springs, Cumberland Co., Pennsylvania, USA
  • Webster, Jackson Co., North Carolina, USA
  • Wallace Stone Plant, Bayport, Huron Co., Michigan, USA
  • Sweet Home Mine, Alma District, Park Co., Colorado, USA
  • Wade mine, Auburn, Androscoggin Co., Maine, USA
  • Willie Heikkienen Ledge prospect, Greenwood, Oxford Co., Maine, USA
  • Willard mine, Lovelock, Pershing Co., Nevada, USA
  • Whitehall prospects, Rumford, Oxford Co., Maine, USA
  • Whitehall, Jefferson Co., Montana, USA
  • Wiley Mt. McAllister prospect, Stow, Oxford Co., Maine, USA
  • Wilkerson Pass Area, Park Co., Colorado, USA
  • Will Austin Ledge locality, Peru, Oxford Co., Maine, USA
  • Whitecap Mt. localities, Rumford, Oxford Co., Maine, USA
  • Townsville, Vance Co., North Carolina, USA
  • Trufant prospect, Topsham, Sagadahoc Co., Maine, USA
  • Tintic Standard mine, Dividend, Utah Co., Utah, USA
  • Tip Top pegmatite, Custer Co., South Dakota, USA
  • Todd's Bay mine, Georgetown, Sagadahoc Co., Maine, USA
  • Topaz cove, Thomas Range, Juab Co., Utah, USA
  • Torpedo Mine, Dona Ana Co., New Mexico, USA
  • Tilcon Capaldi quarry, Acushnet, Bristol Co., Massachusetts, USA
  • "Towle Gold"" mine, Winthrop, Kennebec Co., Maine, USA"
  • Tiger Bill Quarries, Greenwood Township, Oxford Co., Maine, USA
  • Whispering Pines Mine, Paris, Oxford Co., Maine, USA
  • Whitehall mine, Alstead, Cheshire Co., New Hampshire, USA
  • William Willes #1 mine, Topsham, Sagadahoc Co., Maine, USA
  • Willis Warren mine, Stoneham, Oxford Co., Maine, USA
  • Will Oliver mine, Georgetown, Sagadahoc Co., Maine, USA
  • Wiseman Mine, Spruce Pine, Mitchell Co., North Carolina, USA
  • Witt Hill Chrysoberyl locality, Greenwood, Oxford Co., Maine, USA
  • Wolfe's Neck locality, Freeport, Cumberland Co., Maine, USA
  • Wood Copper Mine, micaville, Cleburne Co., Alabama, USA
  • Wood River District, Hailey, Blaine Co., Idaho, USA
  • Woodford & Mercer Co., Kentucky, USA
  • Willis True mine, Waterford, Oxford Co., Maine, USA
  • Whitehall mine, Rumford, Oxford Co., Maine, USA
  • Urad Mine, Berthoud Falls, Clear Creek Co., Colorado, USA
  • White Mountain, Mono Co., California, USA
  • White Mt. Batholith Pegmatite District, Carroll Co., New Hampshire, USA
  • White Mt. Granite quarry, Conway, Carroll Co., New Hampshire, USA
  • White Mt. Silver & Lead mine, Shelburne, Coos Co., New Hampshire, USA
  • White Pine mine, Ontonagan Co., Michigan, USA
  • Tramway mine, Butte, Silver Bow Co., Montana, USA
  • Washington Camp District, Santa Cruz Co., Arizona, USA
  • Stinkingwater copper district, Park Co., Wyoming, USA
  • Saunders Mica mine, Waterford, Oxford Co., Maine, USA
  • Sawmill Peak, Magalia, Butte Co., California, USA
  • Sabbatus Mt. prospects, Lovell, Oxford Co., Maine, USA
  • Rte. I-95 locality, Freeport, Cumberland Co., Maine, USA
  • Rowland Area, Lincoln Co., Kentucky, USA
  • Roxbury Iron mine, Roxbury, Litchfield Co., Connecticut, USA
  • Roy Granite quarry, Oxford, Oxford Co., Maine, USA
  • Roy mine, Rumford, Oxford Co., Maine, USA
  • Royal Flush Mine, Hansonburg district, Socorro Co., New Mexico, USA
  • Royal Gorge Area, Fremont Co., Colorado, USA
  • Russell Brothers mine, Topsham, Sagadahoc Co., Maine, USA
  • Rt. 72 Road Cut, New Britain, Hartford Co., Connecticut, USA
  • Scotty Mine, Newry Township, Oxford Co., Maine, USA
  • Ruby Hill Area, Eureka, Eureka Co., Nevada, USA
  • Ruby Mountain, Nathrop, Chaffee Co., Colorado, USA
  • Ruggles Mine, Grafton Center, Grafton Co., New Hampshire, USA
  • Saratoga Mine, Central City District, Gilpin Co., Colorado, USA
  • Sanitarium mine, Hebron, Oxford Co., Maine, USA
  • San Pedro Mine, Hiriart Hill, San Diego Co., California, USA
  • Stockbridge Valley Brown Iron Ore District, Berkshire Co., Massachusetts, USA
  • Stoney Point, Sharpes Township, Alexander Co., North Carolina, USA
  • Streaked Mt. localities, Hebron, Oxford Co., Maine, USA
  • Strickland quarry, Middlesex Co., Connecticut, USA
  • Stewart mine, Pala, San Diego Co., California, USA
  • Saltman Amethyst prospect, Sweden, Oxford Co., Maine, USA
  • Slattery mine, Paris, Oxford Co., Maine, USA
  • Russo mine, Topsham, Sagadahoc Co., Maine, USA
  • Ruth/Consolidated/Pit/Betty Joe Mines, Ely, White Pine Co., Nevada, USA
  • Rutherford Mines, Amelia Court House, Virginia, USA
  • Ryan mine, Alstead, Cheshire Co., New Hampshire, USA
  • Ryerson Hill mines, Paris, Oxford Co., Maine, USA
  • Rush, Marion Co., Arkansas, USA
  • Sally Mt. locality, Attean, Somerset Co., Maine, USA
  • Rumrill mine, Topsham, Sagadahoc Co., Maine, USA
  • Sam Guptil mine, Woolwich, Sagadahoc Co., Maine, USA
  • Rumford Falls locality, Rumford, Oxford Co., Maine, USA
  • Rump Pond Copper prospect, Parmachenee, Oxford Co., Maine, USA
  • Slab City prospect, Lovell, Oxford Co., Maine, USA
  • Scribner Ledge mine, Albany, Oxford Co., Maine, USA
  • Scrub Oaks Mine, Dover, Morris Co., New Jersey, USA
  • Seavey prospects, Kennebunkport, York Co., Maine, USA
  • Sebasco Flagstone quarry, Phippsburg, Sagadahoc Co., Maine, USA
  • Sedalia Copper Mine, Sedalia, Chaffee Co., Colorado, USA
  • Sierra Co., New Mexico, USA
  • Shaker Granite quarry, Poland, Androscoggin Co., Maine, USA
  • Schundler-Glenrock feldspar pegmatite, Converse Co., Wyoming, USA
  • Shavano Peak, Colorado, USA
  • Sheldon-Columbia Mine, Portage Lake Area, Houghton Co., Michigan, USA
  • Shell Pond Brook locality, Stow, Oxford Co., Maine, USA
  • Sheridan, Crittendon Co., Kentucky, USA
  • Shirley Brook Topaz locality, Stoneham, Oxford Co., Maine, USA
  • Senorita mine, Ouray district, Ouray Co., Colorado, USA
  • Wentworth Farm locality, Parsonsfield, York Co., Maine, USA
  • Shattuck mine, Bisbee, Cochise Co., Arizona, USA
  • Silver Mine, below Iron Mt., Madison Co., Missouri, USA
  • Tanner Bay, Loveland Mtn Area, Park Co., Colorado, USA
  • Rt 9 road cut, Haddam, Middlesex Co., Connecticut, USA
  • Silver Wave mine, Acton, York Co., Maine, USA
  • School Secton Mine, Canon City, Fremont Co., Colorado, USA
  • Sikver Cliff Area, Custer Co., Colorado, USA
  • Silver Crown copper district, Laramie Co., Wyoming, USA
  • Silver Drift mine, Hampden, Penobscot Co., Maine, USA
  • Silver Glance mine, Silent district, Arizona, USA
  • Silver Hill Mine, Tuescon arera, Pima Co., Arizona, USA
  • Siderite Mine, Roxbury Station, Litchfield Co., Connecticut, USA
  • Silver Springs Creek pegmatites, Niobrara Co., Wyoming, USA
  • Showalter Quarry/Blueball Stone Co., East Earle Township/Lancaster, Lancaster Co., Pennsylvania, USA
  • Silver Wing Mine, Burns Gulch, San Juan Co., Colorado, USA
  • Silverton District, San Juan Co., Colorado, USA
  • Silverton Mining District, Howardsville, San Juan Co., Colorado, USA
  • Sinkhole Mine, Bandana, Mitchell Co., North Carolina, USA
  • Skillings Hill prospect, Lovell, Oxford Co., Maine, USA
  • Victory mine, Custer, Custer Co., South Dakota, USA
  • Lynch quarry, Berkeley, Cumberland, Providence Co., Rhode Island, USA
  • Jumbo Copper mine, Prince of Wales Island, Alaska, USA
  • Joyner locality, Peru, Oxford Co., Maine, USA
  • Josephine Horizon, Metaline District, Washington, USA
  • Jordan mine, Oxford, Oxford Co., Maine, USA
  • Jones mine, Brooksville, Hancock Co., Maine, USA
  • Kettle Point quarry, East Providence, Providence Co., Rhode Island, USA
  • Lake Valhalla, Montville, Morris Co., New Jersey, USA
  • Leavitt Plantation locality, Parsonsfield, York Co., Maine, USA
  • Lead Mt. prospect, Andover, Oxford Co., Maine, USA
  • Lead Hill Mine, Ticonderoga, Essex Co., New York, USA
  • Leach prospect, Rumford, Oxford Co., Maine, USA
  • LCA mine, Bessermer City, Gaston Co., North Carolina, USA
  • Laytonville Quarry, Laytonville, Mendocino Co., California, USA
  • Lawrence mine, Hampden, Penobscot Co., Maine, USA
  • Laurel Hill (Snake Hill), Secaucus/Bergen Hill Area, Hudson Co., New Jersey, USA
  • Larrivee prospect, Buckfield, Oxford Co., Maine, USA
  • Juneau Area, Alaska, USA
  • Katahdin Pyrrhotite Locality, Katahdin Iron Works, Piscataquis Co., Maine, USA
  • Keith mine, Auburn, Androscoggin Co., Maine, USA
  • Kenniston Hill mine, Lovell, Oxford Co., Maine, USA
  • Leonard Mine etc, Butte, Silver Bow Co., Montana, USA
  • Knight's Ledge Granite quarries, Pownal, Cumberland Co., Maine, USA
  • Knight mine, Waterford, Oxford Co., Maine, USA
  • Kinkel Quarry, Bedford, Westchester Co., New York, USA
  • Kingsbridge, Bronx Co., New York, USA
  • Kinglet prospect, Newry, Oxford Co., Maine, USA
  • King Lithia Mine, Keystone, Pennington Co., South Dakota, USA
  • Keystone-Douglas Creek gold-copper district, Albany Co., Wyoming, USA
  • Keystone Quarry, Cornog, Chester Co., Pennsylvania, USA
  • Key West mine, Nye Co., Nevada, USA
  • "Knox Lime"" quarry, Union, Knox Co., Maine, USA"
  • Kensington mica Mine, Montgomery Co., Maryland, USA
  • Knox Mt. Granite quarry, Newfield, York Co., Maine, USA
  • Kennedy mine, Auburn, Androscoggin Co., Maine, USA
  • Kelley Bank Mine, Vesuvius, Rockbridge Co., Virginia, USA
  • Lane Quarry, Westfield, Hampden Co., Massachusetts, USA
  • Knob Hill Mine, Republic Mining District, Ferry Co., Washington, USA
  • Erskine Creek, near Kernbille, Kern Co., California, USA
  • Fairfax Quarry, Centreville, Fairfax Co., Virginia, USA
  • Erin, Clay Co., Alabama, USA
  • Faywood Mine, Jose District, Cooks Peak, Luna Co., New Mexico, USA
  • Feather river, Butte Co., California, USA
  • Fenners Ledge, Cranston, Providence Co., Rhode Island, USA
  • Fernando Mine/etc, Darwin District, Inyo Co., California, USA
  • Finch Mine, Hayden, Gila Co., Arizona, USA
  • Fischer mine, Shelburne, Coos Co., New Hampshire, USA
  • Faircloth/Dean/Fairfield/Twin Chimney Mines, Munday's Landing, Mercer Co., Kentucky, USA
  • Elmrow Farm Silver mine, Parsonsfield, York Co., Maine, USA
  • Heath Mica mine, Waterford, Oxford Co., Maine, USA
  • Edwards, Gouverneur, St. Lawrence Co., New York, USA
  • Einstein Silver Mine, Madison Co., Missouri, USA
  • El Portal Area, Mariposa Co., California, USA
  • Eldorado Mine, Indio, Riverside Co., California, USA
  • F. Perham prospect, Rumford, Oxford Co., Maine, USA
  • Everett, Bedford Co., Pennsylvania, USA
  • Etta Mine (Harney Peak & Pearless), Black Hills, Pennington Co., South Dakota, USA
  • Lamartina District, Clear Creek Co., Colorado, USA
  • Jones Beryl locality, Stoneham, Oxford Co., Maine, USA
  • Lake Maranacook Staurolite locality, Winthrop, Kennebec Co., Maine, USA
  • Lake Buchanan, Clear Creek, Burnet Co., Texas, USA
  • "LaForest Emery"" mine, Greenwood, Oxford Co., Maine, USA"
  • LaFlamme quarry, Minot, Androscoggin Co., Maine, USA
  • LaChance mine, Brunswick, Cumberland Co., Maine, USA
  • La Prele copper district, Converse Co., Wyoming, USA
  • La Motte/Missouri Cobalt Mine, Fredrick, Madison Co., Missouri, USA
  • Koskela #2 prospect, Woodstock, Oxford Co., Maine, USA
  • Koskela #1 prospect, Woodstock, Oxford Co., Maine, USA
  • Lane & Sons Traprock quarrys, Westfield, Hampden Co., Massachusetts, USA
  • Fat Jack mine, Lane Mt., Yavapai Co., Arizona, USA
  • Edgecomb Granite quarry, Edgecomb, Lincoln Co., Maine, USA
  • Esterbrook copper district, Albany Co., Wyoming, USA
  • Estes mine, Baldwin, Cumberland Co., Maine, USA
  • Ellenville Lead Mine, Ellenville, Ulster Co., New York, USA
  • Lebanon-Acton mine, Lebanon, York Co., Maine, USA
  • Iron Mt. mines, Bartlett, Carroll Co., New Hampshire, USA
  • Johnston, Providence, Rhode Island, USA
  • John Balla mine, South Acworth, Sullivan Co., New Hampshire, USA
  • Jamestown, Newport Co., Rhode Island, USA
  • John Ladd mine, Rumford, Oxford Co., Maine, USA
  • Isabelle Foster mine, Albany, Oxford Co., Maine, USA
  • Jensen Quarry, Riverside Co., California, USA
  • Little Patsy quarry, Jefferson Co., Colorado, USA
  • Lord Hill mine, Stoneham, Oxford Co., Maine, USA
  • Lookout Mt, Montreat, Buncombe Co., North Carolina, USA
  • Lone Star mine, Woodstock, Oxford Co., Maine, USA
  • Lone Pine mine, Wilcox distr., Catron Co., New Mexico, USA
  • Lone Jack Quarry, Glasgow, Rockbridge Co., Virginia, USA
  • Lockport Quarry, Lockport, Niagara Co., New York, USA
  • local Quarries, Haddam, Middlesex Co., Connecticut, USA
  • Lobikis mine, Peru, Oxford Co., Maine, USA
  • Live Oak Mine, Inspiration, Gila Co., Arizona, USA
  • Jamestown mine, Tuolumne Co., California, USA
  • Joe's quarry, Mount Desert, Hancock Co., Maine, USA
  • Liberty Copper/Dolly Hyde Copper Mines, Libertytown, Fredrick Co., Maryland, USA
  • Joe McKeen Mt. locality, Lovell, Oxford Co., Maine, USA
  • Jockey Cap Hill Garnet locality, Fryeburg, Oxford Co., Maine, USA
  • Jarbridge, Elko Co., Nevada, USA
  • Jeffrey Quarry, North Little Rock, Pulaski Co., Arkansas, USA
  • Johnson Spar prospect, Acworth, Sullivan Co., New Hampshire, USA
  • Island Mountain Mine, Trinity Co., California, USA
  • Italian Mt. Area, Aspen, Gunnison Co., Colorado, USA
  • Jackson Canyon, Humbolt Range, Pershing Co., Nevada, USA
  • Jim Pond Fuchsite locality, Jim Pond, Franklin Co., Maine, USA
  • Jackson/Superior Mines etc, Negaunee, Marquette Co., Michigan, USA
  • Jade Mountain, Kobuk River Valley Region, Alaska, USA
  • Jake Patten Mica prospect, Danbury, Grafton Co., New Hampshire, USA
  • Jamestown, Virginia, USA
  • Jetersville, Amelia Co., Virginia, USA
  • J.P. York prospect, Peru, Oxford Co., Maine, USA
  • Ishpenning Mines, Marquette Co., Michigan, USA
  • Littlefield mine, Auburn, Androscoggin Co., Maine, USA
  • Ledge Ridge locality, Parmachenee, Oxford Co., Maine, USA
  • Magmont mine, Bixby, Iron Co., Missouri, USA
  • Magma Mine, Superior, Pinal Co., Arizona, USA
  • Magdalena district, Socorro Co., New Mexico, USA
  • Madison Lead mine, Madison, Carroll Co., New Hampshire, USA
  • Mack/Stevens Ranch/Victors/Clark Mines, Rincon District, San Diego Co., California, USA
  • Lorusso quarry, Plainville, Norfolk Co., Massachusetts, USA
  • Lutz Quarry, Oshkosh, Wisconsin, USA
  • Lost mine, Topsham, Sagadahoc Co., Maine, USA
  • Lubec Lead mine, Lubec, Washington Co., Maine, USA
  • Lower New Street quarry, Paterson, Passaic Co., New Jersey, USA
  • Lower Nevel Quarry pit, Newry Township, Oxford Co., Maine, USA
  • Lower Colton Hill mine, Stow, Oxford Co., Maine, USA
  • Lowe Ledge prospect, Greenwood, Oxford Co., Maine, USA
  • Lovejoy Mt. mine, Albany, Oxford Co., Maine, USA
  • Lovejoy Gravel pits, Albany, Carroll Co., New Hampshire, USA
  • Lovejay Gravel Pit, North Cornay, Carroll Co., New Hampshire, USA
  • Magnet Cove, Hot Spring Co., Arkansas, USA
  • Mahopac Iron Mine, Brewster, Putnam Co., New York, USA
  • Maine Acton mine, Lebanon, York Co., Maine, USA
  • Little Singepole Mt. prospects, Paris, Oxford Co., Maine, USA
  • Loudville Lead Mine, Loudville, Hampshire Co., Massachusetts, USA
  • Little May mine, Lyman, Grafton Co., New Hampshire, USA
  • Little Deer Hill prospect, Stow, Oxford Co., Maine, USA
  • Lithonia, DeKalb Co., Georgia, USA
  • Lincoln, Providence Co., Rhode Island, USA
  • Limeburner prospect, Penobscot, Hancock Co., Maine, USA
  • Lime Quarry, Bolton, Worcester Co., Massachusetts, USA
  • Lime Crest Quarry, Sparta, Sussex Co., New Jersey, USA
  • Libson Valley Area, San Juan Co., Colorado, USA
  • Liberty Bell and Washington Pass, Okanogan Co., Washington, USA
  • Levant Antimony mine, Levant, Penobscot Co., Maine, USA
  • Little Three mine, Ramona district, San Diego Co., California, USA
  • Lusk, Wyoming, USA
  • Majuba Hill mine, Pershing Co., Nevada, USA
  • Maine Feldspar mine, Auburn, Androscoggin Co., Maine, USA
  • Loudville, Hampshire Co., Massachusetts, USA
  • East Woodstock Silver mine, Woodstock, Oxford Co., Maine, USA
  • Donahue prospect, Albany, Oxford Co., Maine, USA
  • Dragon Cement Quarry - North Pit, Thomaston, Knox Co., Maine, USA
  • Dragon Cement Quarry - South Pit, Thomaston, Knox Co., Maine, USA
  • E.E. Smith mines, Alexandria, Grafton Co., New Hampshire, USA
  • Dubuque Area, Dubuque Co., Iowa, USA
  • E.B. Mallett Granite quarry, Freeport, Cumberland Co., Maine, USA
  • Dunton Quarry etc, Newry Township, Oxford Co., Maine, USA
  • Durango, La Plata Co., Colorado, USA
  • Durfee Hill Gold mine, Glocester, Providence Co., Rhode Island, USA
  • Durgin Mt. locality, Stoneham, Oxford Co., Maine, USA
  • General Electric mines, Buckfield, Oxford Co., Maine, USA
  • Drum Valley Area, Trinity Co., California, USA
  • Highland mine, Penobscot, Hancock Co., Maine, USA
  • Harrington Mine, Carmel, Penobscot Co., Maine, USA
  • Herkimer Co., New York, USA
  • Heroult, Shasta Co., California, USA
  • Dona Dora Mine, Dona Ana Co., New Mexico, USA
  • Dodge mine, Lyman, Grafton Co., New Hampshire, USA
  • Dives mine, La Paz Co., Arizona, USA
  • E.P. Thomas mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Eagle Gray Granite quarry, Fryeburg, Oxford Co., Maine, USA
  • Eagle Mine, Bonanza mining district, Saguache Co., Colorado, USA
  • Eagle Mountain Mine Area, Riverside Co., California, USA
  • East Colusa Mine, Butte, Silver Bow Co., Montana, USA
  • East Fork, Gila River, Grant Co., New Mexico, USA
  • Dickie Doo prospects, Sumner, Oxford Co., Maine, USA
  • East Tintic Mine, Juab Co., Utah, USA
  • Dwelley mine, Brunswick, Cumberland Co., Maine, USA
  • Eastman Hill Tin prospects, Jackson, Carroll Co., New Hampshire, USA
  • Eastman mine, Stow, Oxford Co., Maine, USA
  • Easton Area, North Hampton Co., Pennsylvania, USA
  • Ecton Mine etc, Perkiomenville Area, Montgomery Co., Pennsylvania, USA
  • Edenville, Orange Co., New York, USA
  • East Fryeburg Quartz locality, Fryeburg, Oxford Co., Maine, USA
  • Dunn mines, Norway, Oxford Co., Maine, USA
  • Hibbs mine, Hebron, Oxford Co., Maine, USA
  • Hickey #1 Mine, Hansonburg district, Socorro Co., New Mexico, USA
  • Hayes Ledge mine, Greenwood, Oxford Co., Maine, USA
  • Hogback Mine, Hogback, Jackson Co., North Carolina, USA
  • Montclair Quarry, Montclair, Passaic Co., New Jersey, USA
  • Hazeltone mine, Sumner, Oxford Co., Maine, USA
  • Mallet mine, Topsham, Sagadahoc Co., Maine, USA
  • HedgeHog Hill, Peru Township, Oxford Co., Maine, USA
  • Henderson, Vance Co., North Carolina, USA
  • Hawthorne, Mineral Co., Nevada, USA
  • Interstate 295 roadcut, Cranston, Providence Co., Rhode Island, USA
  • Hodge, San Bernardino Co., California, USA
  • Idarado, San Miguel Co., Colorado, USA
  • Immonen Ledge prospect #1, Greenwood, Oxford Co., Maine, USA
  • Immonen Ledge prospect #2, Greenwood, Oxford Co., Maine, USA
  • Incline, Mariposa Co., California, USA
  • Indian Lake, Essexty, New York, USA
  • Hutchins Consolidated Gold Mining Co., Crook Co., Wyoming, USA
  • Hercules mine, Penobscot, Hancock Co., Maine, USA
  • Havey quarry, Schoolhouse Road, Topsham, Maine, USA
  • Havey mine, Topsham, Sagadahoc Co., Maine, USA
  • Hicks Pond Mine, Greenwood, Oxford Co., Maine, USA
  • Henry White prospect, Edgecomb, Lincoln Co., Maine, USA
  • Highland Commercial Drive, Cumberland, Providence Co., Rhode Island, USA
  • Henry Fox mine, Lovell, Oxford Co., Maine, USA
  • Hill #4 prospect, Hebron, Oxford Co., Maine, USA
  • Hill Top Mine, Cochise Co., Arizona, USA
  • Hilltop mine, Cochise Co., Arizona, USA
  • Himalaya mine, Mesa Grande district, San Diego Co., California, USA
  • Hines Claim, Palm Park, Dona Ana Co., New Mexico, USA
  • Hinkley prospect, Pownal, Cumberland Co., Maine, USA
  • Hiddenite, Alexander Co., North Carolina, USA
  • Haystack Range pegmatite district, Goshen Co., Wyoming, USA
  • General Area, Jasper & Newton counties, Missouri, USA
  • Hartville iron-copper district, Platte Co., Wyoming, USA
  • Harvard Quarry, Greenwood Township, Oxford Co., Maine, USA
  • Hatch Ledge locality, Auburn, Androscoggin Co., Maine, USA
  • Ingalls mine, Topsham, Sagadahoc Co., Maine, USA
  • Davis Silver mine, Hermon, Penobscot Co., Maine, USA
  • Esmeralda/Himalaya/SanDiego Mines #2, Mesa Grande, San Diego Co., California, USA
  • Gambo Falls Staurolite locality, Gorham, Cumberland Co., Maine, USA
  • Garden Park, Fremont Co., Colorado, USA
  • Garland mine, Topsham, Sagadahoc Co., Maine, USA
  • Garnet mine, Russell, Hampden Co., Massachusetts, USA
  • Garret Mountain Quarries, Paterson, Passaic Co., New Jersey, USA
  • Gabbs District, Nye Co., Nevada, USA
  • Forest City mine, Acton, York Co., Maine, USA
  • Edgar Barrett Farm locality, Sumner, Oxford Co., Maine, USA
  • Flat Hill locality, Lovell, Oxford Co., Maine, USA
  • Fleck mine, Albany, Oxford Co., Maine, USA
  • Fletcher mine, Buckfield, Oxford Co., Maine, USA
  • Fletcher mine, North Groton, Grafton Co., New Hampshire, USA
  • Flint Mt. prospects, Albany, Oxford Co., Maine, USA
  • French Creek Mines, Knauertown, Chester Co., Pennsylvania, USA
  • Foote Spodumene Mine, Kings Mountain, Cleveland Co., North Carolina, USA
  • Five Ponds mine, Waterford, Oxford Co., Maine, USA
  • Galena/Baxter Springs/Lawton, Cherokee Co., Kansas, USA
  • Freeport Granite quarry, Freeport, Cumberland Co., Maine, USA
  • Galena General Area, Jo Davies Co., Illinois, USA
  • Ellis River Beryl locality, Andover, Oxford Co., Maine, USA
  • Flambeau mine, Ladysmith, Rusk Co., Wisconsin, USA
  • Emerson mine, Castine, Hancock Co., Maine, USA
  • Emma mine, Butte, Silver Bow Co., Montana, USA
  • Emmons mine, Greenwood, Oxford Co., Maine, USA
  • Encampment copper district, Carbon Co., Wyoming, USA
  • Erie Mine/Enterprise Mine, Austin, Lander Co., Nevada, USA
  • Ellingwood mine, Paris, Oxford Co., Maine, USA
  • Galena King Mine, Tijeras Canyon district, Bernalillo Co., New Mexico, USA
  • Fisher Quarry, Topsham Township, Sagadahoc Co., Maine, USA
  • French Mt./Wardwell Quarry, Albany Township, Oxford Co., Maine, USA
  • Frogeye Mine, Micaville, Yancey Co., North Carolina, USA
  • Fullerton Farm locality, Waterford, Oxford Co., Maine, USA
  • G. Howe Amethyst mine, Sweden, Oxford Co., Maine, USA
  • G.E. Smith mine, Newport, Sullivan Co., New Hampshire, USA
  • Freidensville, Lehigh Co., Pennsylvania, USA
  • Forge Hill iron mines, West Hawley, Franklin Co., Massachusetts, USA
  • Forrest Queen Mine, Irwin District, Gunnison Co., Colorado, USA
  • Edgemoggin Silver mine, Sedgwick, Hancock Co., Maine, USA
  • Devil's Head, Long Hollow/Pikes Peak Area, El Paso Co., Colorado, USA
  • Daybreak Mine, Mount Spokane, Spokane Co., Washington, USA
  • Dagget mine, Hartford, Oxford Co., Maine, USA
  • Damon Hill prospect, Buckfield, Oxford Co., Maine, USA
  • Danbury Mica mine, Danbury, Grafton Co., New Hampshire, USA
  • Daniel Bonanza Mine, Ouray Co., Colorado, USA
  • Davis Mica mine, West Bath, Sagadahoc Co., Maine, USA
  • Davis pyrite mine, Rowe, Franklin Co., Massachusetts, USA
  • Deer Isle Town quarry, Deer Isle, Hancock Co., Maine, USA
  • Day Hill locality, Cornish, York Co., Maine, USA
  • Dirigo mine, Acton, York Co., Maine, USA
  • De Kalb, St. Lawrence Co., New York, USA
  • De Lamar, Owyhee Co., Idaho, USA
  • Dead Indian Hill, Park Co., Wyoming, USA
  • Deer Creek copper district, Converse Co., Wyoming, USA
  • Diamond Ledge prospects, Greenwood, Oxford Co., Maine, USA
  • Diamond Hill/Sneech Pond Copper Mines, Cumberland, Rhode Island, USA
  • Diamond Hill Iron prospects, Cumberland, Providence Co., Rhode Island, USA
  • Foster Hill prospects, Stoneham, Oxford Co., Maine, USA
  • Fowler mine, Hampden, Penobscot Co., Maine, USA
  • Franconia Iron mine, Sugar Hill, Grafton Co., New Hampshire, USA
  • Florissant Crystal Peak Area, Teller Co., Colorado, USA
  • Devil's Hole Mine, Texas Creek, Fremont Co., Colorado, USA
  • Dillsburg, York Co., Pennsylvania, USA
  • Deering-Acton mine, Acton, York Co., Maine, USA
  • Delmar, Nevada, USA
  • Democrat, Madison Co., North Carolina, USA
  • Denny Mountain Area, King Co., Washington, USA
  • Devils Head, Deckers, Douglas Co., Colorado, USA
  • Deer Isle mine, Deer Isle, Hancock Co., Maine, USA
  • Devils Hole mine, Devils Hole pegmatite, Texas Creek area, Fremont Co., Colorado, USA
  • Deer Hill, Stowe Township, Oxford Co., Maine, USA
  • Dexter quarry, Lincoln, Providence Co., Rhode Island, USA
  • Diamond Hill Granite quarry, Cumberland, Providence Co., Rhode Island, USA
  • Deer Hill mine, Stow, Oxford Co., Maine, USA
  • Treadwell Mine, Douglas Island opposite Junea City, SE Juneau Area, Alaska, USA
  • Black Hawk mine, Black Hawk district, Grant Co., New Mexico, USA
  • Androscoggin Tourmaline Prospect, Auburn, Androscoggin Co., Maine, USA
  • Angie pegmatite claims, Park Co., Wyoming, USA
  • Apache Mine, near Globe, Gila Co., Arizona, USA
  • Area mines, Brindletown, Burke Co., North Carolina, USA
  • Area mines, Flat Rock, Mitchell Co., North Carolina, USA
  • Arlington Quarry etc, Leesburg, Loudoun Co., Virginia, USA
  • Anderson, Anderson Co., South Carolina, USA
  • Alfred Whitney & B.B. Whiteny mines, Baldwin, Cumberland Co., Maine, USA
  • Adams Ledge prospect, Stoneham, Oxford Co., Maine, USA
  • Adams mine, San Juan Co., Colorado, USA
  • Adderton mine, Topsham, Sagadahoc Co., Maine, USA
  • Aggregate Industries quarry, Ashland, Middlesex Co., Massachusetts, USA
  • Akerman mine, Alexandria, Grafton Co., New Hampshire, USA
  • Alder Pond locality, Lower Enchanted, Somerset Co., Maine, USA
  • American Eagle Mine, Elk Mts. Area, Gunnison Co., Colorado, USA
  • Alexander mine, Stoneham, Oxford Co., Maine, USA
  • Amazon Wash Mines, Wickenburg Area, Maricopa Co., Arizona, USA
  • Andrews prospect, Stoneham, Oxford Co., Maine, USA
  • Amelia (Gallo) mine, Yuma Co., Arizona, USA
  • Blue Bell Mine, Baker, San Bernardino Co., California, USA
  • Black Mt spodumene pegmatite prospect, Natrona Co., Wyoming, USA
  • "Bean Mt. Gold"" mine, Rumford, Oxford Co., Maine, USA"
  • Black Mt. mines, Rumford, Oxford Co., Maine, USA
  • Black Pine Mine, Phillipsburg, Granite Co., Montana, USA
  • Black Rock mine, Yuma Co., Arizona, USA
  • Blackbird District near Cobalt, Salmon, Lehmi Co., Idaho, USA
  • Blackguard Mica mine, Waterford, Oxford Co., Maine, USA
  • Black Mountain mica Mine, Rumford Township, Oxford Co., Maine, USA
  • Androscoggin Falls locality, Topsham, Sagadahoc Co., Maine, USA
  • Bear Lodge mining district, Crook Co., Wyoming, USA
  • American mine, Bingham Canyon, Salt Lake Co., Utah, USA
  • American Tunnel mine, Silverton Mining District, Howardsville, San Juan Co., Colorado, USA
  • Amethyst lode, Creede, Mineral Co., Colorado, USA
  • Anderson mine, Mason, Oxford Co., Maine, USA
  • Anderson Ridge pegmatites, Fremont Co., Wyoming, USA
  • Ash Creek rhyolite, near Hayden, Pinal Co., Arizona, USA
  • Alice mine, Alice district, Clear Creek Co., Colorado, USA
  • Beacon Pole Hill quarry, Cumberland, Providence Co., Rhode Island, USA
  • Beacon Pole Hill/Iron Mine Hill/Diamond Hill etc, Cumberland Area, Providence Co., Rhode Island, USA
  • Barringer Hill, Blufton, Llano Co., Texas, USA
  • B.B. Whitney mine, Standish, Cumberland Co., Maine, USA
  • Breckenridge, Summit Co., Colorado, USA
  • Ashaway Village, Hopkinton, Washington Co., Rhode Island, USA
  • Atlantic City iron mine, Fremont Co., Wyoming, USA
  • Atwood Kimball mine, Lovell, Oxford Co., Maine, USA
  • Atwood mine, Lisbon, Grafton Co., New Hampshire, USA
  • Austin McHugh mine, Minot, Androscoggin Co., Maine, USA
  • Bald Face Mountain Area, Chatam & Conway, Carroll Co., New Hampshire, USA
  • B & B deposit, Big Creek District, Valley Co., Idaho, USA
  • Asbestos Peak, Globe, Gila Co., Arizona, USA
  • B.B.#7 mine, Norway, Oxford Co., Maine, USA
  • Bachman Iron Mine, Hellerton, Northampton Co., Pennsylvania, USA
  • Bagdad Copper mine, 7-U-7 Ranch, Hillside, Yavapai Co., Arizona, USA
  • Batty farm, Harrisville, Burrillville, Providence Co., Rhode Island, USA
  • Batchelder Granite quarry, Fryeburg, Oxford Co., Maine, USA
  • Basin Vesuvianite locality, Phippsburg, Sagadahoc Co., Maine, USA
  • Allanite pegmatite, Albany Co., Wyoming, USA
  • Allen Mt. prospect, Stoneham, Oxford Co., Maine, USA
  • Alstead, Cheshire Co., New Hampshire, USA
  • Alton Maxim prospect, Lovell, Oxford Co., Maine, USA
  • Aldrich mine, Stoneham, Oxford Co., Maine, USA
  • Basin Falls locality, Buckfield, Oxford Co., Maine, USA
  • Artic II mine, Crook Co., Wyoming, USA
  • Balmat-Edwards District, Governor, St.Lawrence Co., New York, USA
  • Barbour prospect, Stoneham, Oxford Co., Maine, USA
  • Bare Hills, Baltimore, Baltimore Co., Maryland, USA
  • Barr Mine, Picher, Oklahoma, USA
  • Barrett prospect, Hebron, Oxford Co., Maine, USA
  • Balcumas Mica mine, Peru, Oxford Co., Maine, USA
  • Barrus Farm locality, Goshen, Hampshire Co., Massachusetts, USA
  • Baker Mountain (Farmville Area), Prince Edward Co., Virginia, USA
  • Basin mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Bagley Ledge/Galand/Larrabec/Luchance Mines, Brunswick Township, Oxford Co., Maine, USA
  • Black Hawk district, Grant Co., New Mexico, USA
  • Pound of Tea Island Epidote locality, Freeport, Cumberland Co., Maine, USA
  • Bergendahl/Davis/Pease/Piper Hill/Tin, Newfield, York Co., Maine, USA
  • Berry Ledge locality, Cornish, York Co., Maine, USA
  • Berry-Havey mines, Poland, Androscoggin Co., Maine, USA
  • Bershire Talc Company mines, Hinsdale, Berkshire Co., Massachusetts, USA
  • Beryl Mountain Mine, South Acworth, Sullivan Co., New Hampshire, USA
  • Beryllium Corporation mine, Greenwood, Oxford Co., Maine, USA
  • Biron mine, Sumner, Oxford Co., Maine, USA
  • Betts Manganese Mine, Plainfield, Hampshire Co., Massachusetts, USA
  • Bennett Quarry, Buckfield Township, Oxford Co., Maine, USA
  • Big Chief mica pegmatite, Albany Co., Wyoming, USA
  • Big Creek - Rush Creek area, Fresno Co., California, USA
  • Big Creek pegmatite district, Carbon Co., Wyoming, USA
  • Big Ridge Mine, Hazelwood, Haywood Co., North Carolina, USA
  • Big Thompson pegmatite, Drake, Larimer Co., Colorado, USA
  • Bean Mt. Mica mine, Waterford, Oxford Co., Maine, USA
  • Bessey mines, Buckfield, Oxford Co., Maine, USA
  • Betty O'Neal, Nevada, USA
  • Camel's Hump area, Bethlehem, Lehigh Co., Pennsylvania, USA
  • Pine Hill locality, Stow, Oxford Co., Maine, USA
  • Porter Landing prospects, Freeport, Cumberland Co., Maine, USA
  • Pingree Ledge mine, Albany, Oxford Co., Maine, USA
  • Petaca District, Rio Arriba Co., New Mexico, USA
  • Pike quarry, West Paris, Oxford Co., Maine, USA
  • Pikes Peak, Teller Co., Colorado, USA
  • Pine Creek Mine, Bishop, Inyo Co., California, USA
  • Pine Grove district, Beaver Co., Utah, USA
  • Pine Hill Chrysoberyl locality, Lovell, Oxford Co., Maine, USA
  • Platteville Area, Iowa Co., Wisconsin, USA
  • Pine Ridge pegmatite, Cotopaxi district, Fremont Co., Colorado, USA
  • Platt pegmatite mine, Carbon Co., Wyoming, USA
  • Pinnacle mine, Peru, Oxford Co., Maine, USA
  • Pioche District, Lincoln Co., Nevada, USA
  • Piper Hill prospect, Newfield, York Co., Maine, USA
  • Pipestone Pass Area, Bald Mts. Area, Jefferson Co., Montana, USA
  • Route 16 Stilpnomelane locality, Jim Pond, Franklin Co., Maine, USA
  • Belleveau prospect, Rumford, Oxford Co., Maine, USA
  • Brasstown Area, Towns Co., Georgia, USA
  • Booker East mine, Topsham, Sagadahoc Co., Maine, USA
  • Booker West mine, Topsham, Sagadahoc Co., Maine, USA
  • Boomer Mine i, Laeke George a.rea, Park Co., Colorado, USA
  • Bloomington Crushed Stone Quarry, Monroe Co., Indiana, USA
  • Boston-Acton mine, Acton, York Co., Maine, USA
  • Blanchard Mine, Bingham, Socorro Co., New Mexico, USA
  • Bowker mine, Paris, Oxford Co., Maine, USA
  • "Bradbury Mt. Gold & Silver"" mine, Woodstock, Oxford Co., Maine, USA"
  • Bradbury Mt. State Park locality, Pownal, Cumberland Co., Maine, USA
  • Braley Hill mine, Alexandria, Grafton Co., New Hampshire, USA
  • Branchville Mica mine, Branchville, Fairfield Co., Connecticut, USA
  • Booth & Lane Mines, Monroe, Fairfield Co., Connecticut, USA
  • Black Mt. locality, Peru, Oxford Co., Maine, USA
  • Bishop Mine, Lynch Station, Campbell Co., Virginia, USA
  • Bishop's Cap, Dona Ana Co., New Mexico, USA
  • Black Cloud Mine, Leadville District, Lake Co., Colorado, USA
  • Blue Mountain, Virginia, USA
  • Blue Berry Mt., Woburn, Middlesex Co., Massachusetts, USA
  • Binford mine, Batchelder's Grant, Oxford Co., Maine, USA
  • Bear Mt. Mica mine, Waterford, Oxford Co., Maine, USA
  • Bear pegmatite, Laramie Co., Wyoming, USA
  • Beatson Mine, Prince Willuam Sound, Alaska, USA
  • Beaver pegmatite, Laramie Co., Wyoming, USA
  • Beaver Valley Quarry, Shine, Jefferson Co., Washington, USA
  • Benson Mines, Newton Falls/Star Lake, St.Lawrence Co., New York, USA
  • Bell Pit, Newry, Oxford Co., Maine, USA
  • Bennett/Chapman/Hendrix mica Mines, Ball Ground Area, Cherokee Co., Georgia, USA
  • Bellows Falls, Windham Co., Vermont, USA
  • Bemis Stream prospect, Township D, Franklin Co., Maine, USA
  • Ben Franklin Mine, West Pikeland Township/Oppermans Corner, Chester Co., Pennsylvania, USA
  • Benitoite/Dallas/Victor/New Idria Mines, New Idria Mining District, San Benito & Fresno Counties, California, USA
  • Bennett & Orchard Pit mines, Buckfield, Oxford Co., Maine, USA
  • Bisbee, Cochise Co., Arizona, USA
  • Beech Hill Mica mine, Waterford, Oxford Co., Maine, USA
  • Bound Brook Quarry, Bridgewater, Somerset Co., New Jersey, USA
  • Black Dixie Mine, Bailey Mtn., Yancey Co., North Carolina, USA
  • Burnell Hill prospects, Waterford, Oxford Co., Maine, USA
  • Bryant Pond Granite quarry, Woodstock, Oxford Co., Maine, USA
  • Buffalo Creek, El Paso Co., Colorado, USA
  • Bullion Mining & Milling mine, Acton, York Co., Maine, USA
  • Brittain Prospect, Burke Co., North Carolina, USA
  • Chester Holt prospect, Albany, Oxford Co., Maine, USA
  • Carrsville Area, Livingston Co., Kentucky, USA
  • Champion mine, White Mountains, Mono Co., California, USA
  • Champion-Consolidated mines, Milton, Oxford Co., Maine, USA
  • Chandlers Mill/Smith Mine etc, newport, Sullivan Co., New Hampshire, USA
  • Chapman mine, Topsham, Sagadahoc Co., Maine, USA
  • Charles Taylor mine, Freeport, Cumberland Co., Maine, USA
  • Champion Mine, Lake City, Hinsdale Co., Colorado, USA
  • Chester Emery mine, Chester, Hampden Co., Massachusetts, USA
  • Champion mine, Keweenaw Co., Michigan, USA
  • Chester Mica mines, Chester, Hampden Co., Massachusetts, USA
  • Cheyenne Mt area, El Paso Co., Colorado, USA
  • Brown-Tipton Mine, Mosheim, Greene Co., Tennessee, USA
  • Browns Creek Area, Natrop/Mount Antero, Chaffee Co., Colorado, USA
  • Cartersville district, Bartow Co., Georgia, USA
  • Cambio quarry, Coventry, Kent Co., Rhode Island, USA
  • Bumpus mine, Albany, Oxford Co., Maine, USA
  • Camp Bird/Dunmore/Monarch Mtn/Portland Mines et., Ouray Area, Ouray Co., Colorado, USA
  • Camp Hinds locality, Raymond, Cumberland Co., Maine, USA
  • Canton Chrysoberyl prospect, Canton, Oxford Co., Maine, USA
  • Carlsbad Caverns, Eddy Co., New Mexico, USA
  • Carmel Antimony mine, Carmel, Penobscot Co., Maine, USA
  • Broome prospect, Newry, Oxford Co., Maine, USA
  • Bridgeport Dolomite Quarry, Bridgeport, Montgomery Co., Pennsylvania, USA
  • Brilliant, Macon Co., Alabama, USA
  • Brinton's Quarry etc, Chester, Delaware Co., Pennsylvania, USA
  • Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
  • Bristol Ferry, Bristol, Bristol Co., Rhode Island, USA
  • Bristol, Bristol Co., Rhode Island, USA
  • Butte General Area, Montana, USA
  • Brooklyn Mine, Cement Creek District, San Juan Co., Colorado, USA
  • Chicago Mine, Igo, Shasta Co., California, USA
  • Chief lithium pegmatite, Texas Creek area, Fremont Co., Colorado, USA
  • Adams Hill, South Newfane, Windham Co., Vermont, USA
  • Cushman Farm prospect, Hebron, Oxford Co., Maine, USA
  • 79 Mine, Banner District, Gila Co., Arizona, USA
  • A.C. Perham mine, West Paris, Oxford Co., Maine, USA
  • Acton mine, Acton, York Co., Maine, USA
  • Carlin Mine, Carlin, Eureka Co., Nevada, USA
  • Zinc Hill Mine, Darwin Area, Inyo Co., California, USA
  • Yedlin Locality mine, Topsham, Sagadahoc Co., Maine, USA
  • Yellowstone National Park, Wyoming, USA
  • York County mine, Lebanon, York Co., Maine, USA
  • Yuhas No. 1 mine, Acworth, Sullivan Co., New Hampshire, USA
  • Yuhas No. 2 mine, Acworth, Sullivan Co., New Hampshire, USA
  • Zaca (Advance/Colorado/Tarshish) mine, Colorado Hill, Monitor-Mogul district, Alpine Co., California, USA
  • Zanett tunnel, Grizzly Bear Mine, Ouray Co., Colorado, USA
  • Zuni mine, Silverton Mining District, Howardsville, San Juan Co., Colorado, USA
  • Zaca Mine, Monitor-Mogal District, Alpine Co., California, USA
  • Catherine Mt. Molybdenite prospect, T10 SD, Hancock Co., Maine, USA
  • Chalk Mountain Mine, Fallon Area, Churchill Co., Nevada, USA
  • Central York Mts., West Seward Peninsula, Alaska, USA
  • Chino ore body, Central Mining District, Grant Co., Nevada, USA
  • ACCO Stone Quarry, Montgomery Co., Virginia, USA
  • Cherryville, Gastony, North Carolina, USA
  • Cayuga & Seneca Lakes, Seneca Co., New York, USA
  • Christmas Mine, Hayden, Gila Co., Arizona, USA
  • Carver prospect, Rumford, Oxford Co., Maine, USA
  • Casco mine, Acton, York Co., Maine, USA
  • Case Coal mine, Portsmouth, Newport Co., Rhode Island, USA
  • Casey Co., Kentucky, USA
  • Catheart Mt. locality, Bradstreet, Somerset Co., Maine, USA
  • Champion mine, near Laws, Inyo Co., California, USA
  • Catherine No. 1 pegmatite mine, Natrona Co., Wyoming, USA
  • Carson Hill/New Melones Lake, Calaveras Co., California, USA
  • Cecil Park, New York, USA
  • Cedar Mountain Ridge Chromite deposits, SE of Livermore, Alameda Co., California, USA
  • Centennial Mine, Calumet, Houghton Co., Michigan, USA
  • Woolworth Beryl locality, Winthrop, Kennebec Co., Maine, USA
  • Calumet Mine, Turret District, Chaffee Co., Colorado, USA
  • Bailey Granite quarry, Allenstown, Merrimack Co., New Hampshire, USA
  • Cinque quarry, East Haven, New Haven Co., Connecticut, USA
  • City quarry, Lewiston, Androscoggin Co., Maine, USA
  • Clark Ledges pegmatite locality, West Chesterfield, Hampshire Co., Massachusetts, USA
  • Clark Mica mine, Peru, Oxford Co., Maine, USA
  • Clearspring/Erie/Pinhook/Zelma etc, Lawrence Co., Indiana, USA
  • Climax Mine, Climax, Lake Co., Colorado, USA
  • Colorado Central Mine, Silverplume/Georgetown District, Clear Creek Co., Colorado, USA
  • Cloverdale Russian River Area, Mendocino Co., California, USA
  • Cook Road Staurolite locality, Windham, Cumberland Co., Maine, USA
  • Coarse Gold, Madera, California, USA
  • Cobble Hill mine, West Paris, Oxford Co., Maine, USA
  • Cochetopa Hills Area, Saguache Co., Colorado, USA
  • Coe Ledge prospect, Albany, Oxford Co., Maine, USA
  • Colby mine, Paris, Oxford Co., Maine, USA
  • Clip mine, Yuma, Yuma Co., Arizona, USA
  • Crystal Hill, Arizona, USA
  • Clubbs Mountain, Alexis, Gaston Co., North Carolina, USA
  • Conklin quarry, Lincoln, Providence Co., Rhode Island, USA
  • Consolidated Hampden mine, Hampden, Penobscot Co., Maine, USA
  • Avonsdale, Delaware Co., Pennsylvania, USA
  • Consolidated #1 mine, Topsham, Sagadahoc Co., Maine, USA
  • Brandywine Quarry, Willimgton, New Castle Co., Delaware, USA
  • Colorado Quartz Mine, Whitlock District, Mariposa Co., California, USA
  • Colorado Springs, Stove Mountain, El Paso Co., Colorado, USA
  • Colton Hill mine, Stow, Oxford Co., Maine, USA
  • Commodore Mine, Creede, Mineral Co., Colorado, USA
  • Conant mine, Hebron, Oxford Co., Maine, USA
  • Collier Creek Quartz mine, Montgomery Co., Arkansas, USA
  • Conroy mine, Mechanic Falls, Androscoggin Co., Maine, USA
  • Cole mine, Stoneham, Oxford Co., Maine, USA
  • Consolidated #2 mine, Topsham, Sagadahoc Co., Maine, USA
  • Consolidated #3 mine, Topsham, Sagadahoc Co., Maine, USA
  • Consolidated #4 mine, Topsham, Sagadahoc Co., Maine, USA
  • Consolidated Bald Hill prospects, Georgetown, Sagadahoc Co., Maine, USA
  • Consolidated Feldspar mines, Georgetown, Sagadahoc Co., Maine, USA
  • Construction Materials Corp. quarry, Tiverton, Newport Co., Rhode Island, USA
  • Crawford Notch locality, Nash & Sawyer Location, Coos Co., New Hampshire, USA
  • Copper Mt pegmatite district, Fremont Co., Wyoming, USA
  • Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA
  • Crawford & Jackford, Crawford Co., Arkansas, USA
  • Cornwall, Lebanon Co., Pennsylvania, USA
  • Conway, Carroll Co., New Hampshire, USA
  • Corundum Hill, Unionville, Chester Newlin Co., Pennsylvania, USA
  • Corydon Stone Co. Quarry, Corydon, Harrison Co., Indiana, USA
  • Courtland-Gleeson District, Cochise Co., Arizona, USA
  • Coventry Area, Kent Co., Rhode Island, USA
  • Coye mine, Waterford, Oxford Co., Maine, USA
  • Cordero Mine, McDermitt, Humbolt Co., Nevada, USA
  • Woodstock mine, Woodstock, Oxford Co., Maine, USA
  • Chute prospect, Casco, Cumberland Co., Maine, USA
  • Butters Mt. Locality, Stoneham, Oxford Co., Maine, USA
  • Cal Stearns Hill mine, Stoneham, Oxford Co., Maine, USA
  • California Mine, Nathrop, Chaffee Co., Colorado, USA
  • Copper Mountain Area, Sulzer/Prince of Wales Island, Alaska, USA
  • Copper King Mine, Red Feathers Lake Area, Larimer Co., Colorado, USA
  • Copper Hill Area mines, Ducktown, Polk Co., Tennessee, USA
  • Creeper Hill prospect, Stow, Oxford Co., Maine, USA
  • Crestmore Quarry, Crestmore, Riverside Co., California, USA
  • Cripple Creek, Teller Co., Colorado, USA
  • Crisman, Boulder Co., Colorado, USA
  • Cranston Graphite mine, Cranston, Providence Co., Rhode Island, USA
  • Crooker prospect, Newry, Oxford Co., Maine, USA
  • Crabtree mine, Spruce Pine, Mitchell Co., North Carolina, USA
  • Crystal Park, Manitou Springs-Pikes Peak Area, El Paso Co., Colorado, USA
  • Crystal Pass, Ray, Pinal Co., Arizona, USA
  • Crystal Point Diamond Mine, Williamsport, Lycoming Co., Pennsylvania, USA
  • C-thon Prospect, Stanley District, Graham Co., Arizona, USA
  • Cummings mine, Buckfield, Oxford Co., Maine, USA
  • Cummington, Hampshire Co., Massachusetts, USA
  • Crocker Hill mines, Paris, Oxford Co., Maine, USA
  • Corundum Hill Area, Franklin (Mason Mountain), Macon Co., North Carolina, USA
  • Chloride mine, Yuma Co., Arizona, USA
  • Callahan mine, Brooksville, Hancock Co., Maine, USA
  • Mount Mitchell/Greybeard Mountain, McDowell Co., North Carolina, USA
  • Old Dominium, Gila Co., Arizona, USA
  • Orman McAllister mine, Lovell, Oxford Co., Maine, USA
  • Osborne Soapstone quarry, Blandford, Hampden Co., Massachusetts, USA
  • Osceola Mine, Cunningham Gulch, San Juan Co., Colorado, USA
  • Osceola/Mohawk/Iroquois/Clark/Delaware Mine etc, Keweenaw Peninsula, Michigan, USA
  • Ouray Co., Colorado, USA
  • Rowe, Franklin Co., Massachusetts, USA
  • Ore Hill mine, Warren, Grafton Co., New Hampshire, USA
  • Nubble mine, Greenwood, Oxford Co., Maine, USA
  • Morris Dam quarry, Morris, Litchfield Co., Connecticut, USA
  • Nickel Plate Mine, Keystone, Pennington Co., South Dakota, USA
  • North Castine mine, Castine, Hancock Co., Maine, USA
  • North Moat Mt. locality, Bartlett, Carroll Co., New Hampshire, USA
  • North Mountain Serpentine locality, Cheshire, Berkshire Co., Massachusetts, USA
  • North Percy Peaks locality, Stratford, Coos Co., New Hampshire, USA
  • Old Tamminen mine, Greenwood, Oxford Co., Maine, USA
  • Ore Knob Copper Mine, Ashe, Ashe Co., North Carolina, USA
  • Old Guard Mine, Tombstone, Cochise Co., Arizona, USA
  • Ordway mine, Topsham, Sagadahoc Co., Maine, USA
  • Mountain City Copper Mine, Elko Co., Nevada, USA
  • Mt. Rubellite mines, Hebron, Oxford Co., Maine, USA
  • Mt Mica mine, Paris, Oxford Co., Maine, USA
  • Newt Brook Chrysoberyl locality, Woodstock, Oxford Co., Maine, USA
  • Mt Peak pyrite mine, Charlemont, Franklin Co., Massachusetts, USA
  • Mt Tom, Exeter, Washington Co., Rhode Island, USA
  • Mt. Ararat mines, Topsham, Sagadahoc Co., Maine, USA
  • Mt. Arat prospect, Phippsburg, Sagadahoc Co., Maine, USA
  • Mt. Baldy & Gold Mt., Ohio, Utah, USA
  • Mountain Consolidated Mine, Butte, Silver Bow Co., Montana, USA
  • Organ Mts, Dona Ana Co., New Mexico, USA
  • New Water Mountains, Yuma Co., Arizona, USA
  • Old Yuma Mine, Tuscon Area, Pima Co., Arizona, USA
  • Ora Mine, Hansonburg district, Socorro Co., New Mexico, USA
  • Orchard Quarry/Bennett farm, Buckfield Township, Oxford Co., Maine, USA
  • Ordway Farm locality, Norway, Oxford Co., Maine, USA
  • Nottingham, Pennsylvania, USA
  • Newcomb, Essex Co., New York, USA
  • Melrose Farm Beryllonite prospects, Stoneham, Oxford Co., Maine, USA
  • Melrose mine, Stoneham, Oxford Co., Maine, USA
  • Memphis Mine, Organ district, Dona Ana Co., New Mexico, USA
  • McKay Farm prospect, Phippsburg, Sagadahoc Co., Maine, USA
  • Marston mine, Alexandria, Grafton Co., New Hampshire, USA
  • Manhan Lead Silver Mine, Southampton, Hampshire Co., Massachusetts, USA
  • Manhan mines, Easthampton, Hampshire Co., Massachusetts, USA
  • Manton, Providence Co., Rhode Island, USA
  • Manville quarry, Cumberland, Providence Co., Rhode Island, USA
  • Many Values pegmatite prospect, Albany Co., Wyoming, USA
  • Marie Mine, Carbon Co., Montana, USA
  • Mauldinb Mt. Quarry, Mount Ida, Montgomery Co., Arkansas, USA
  • Mariposa mine, Terlingua district, Brewster Co., Texas, USA
  • Metcalf mine, Topsham, Sagadahoc Co., Maine, USA
  • Martin Marietta Quarry, Hickory, Catawba Co., North Carolina, USA
  • Martin mine, Newry, Oxford Co., Maine, USA
  • Meeper Mine, Pisgah National Forest, Buncombe Co., North Carolina, USA
  • Medicine Bow Mts., Gold Hill, Wyoming, USA
  • McLear Quarry, DeKalk Township, St.Lawrence Co., New York, USA
  • Nugget gold district, Fremont Co., Wyoming, USA
  • Oatman, Mohave Co., Arizona, USA
  • Ohio Mine, Ouray Co., Colorado, USA
  • Ohtonens mine, Greenwood, Oxford Co., Maine, USA
  • Old Cobalt Nickel Mine, Chatam, Middlesex Co., Connecticut, USA
  • North Topsham mine, Topsham, Sagadahoc Co., Maine, USA
  • McLaughlin's Ledge, Cumberland, Providence Co., Rhode Island, USA
  • Morse Brook locality, Grafton, Oxford Co., Maine, USA
  • Mayhue Ledge locality, Hebron, Oxford Co., Maine, USA
  • McAllister Spar prospects, Stoneham, Oxford Co., Maine, USA
  • McCauliff Quarry/Rollston Hill, Fitchburg, Worchester Co., Massachusetts, USA
  • McCormick (Ide Ledge) quarry, East Providence, Providence Co., Rhode Island, USA
  • McGinnis mine, Wentworth, Grafton Co., New Hampshire, USA
  • Masslite quarry, Plainville, Norfolk Co., Massachusetts, USA
  • McKiernan & Bergin quarry, Paterson, Passaic Co., New Jersey, USA
  • Massachusetts Talc Company mine, Rowe, Franklin Co., Massachusetts, USA
  • Marysvale, Piute Co., Utah, USA
  • Mount mica, Paris Township, Oxford Co., Maine, USA
  • Treasury Tunnel, San Juan Mts, Colorado, USA
  • Ten Strike Mine, Klondyke, Arizona, USA
  • Unnamed prospect #4, Topsham, Sagadahoc Co., Maine, USA
  • Unnamed Beryl Prospect, Black Mountain, Buncombe Co., North Carolina, USA
  • Unnamed Feldspar mine, Standish, Cumberland Co., Maine, USA
  • Unnamed Granite quarry, Freeport, Cumberland Co., Maine, USA
  • Unnamed Lime-Marble quarry #1, Gorham, Cumberland Co., Maine, USA
  • Unnamed Lime-Marble quarry #2, Gorham, Cumberland Co., Maine, USA
  • Unnamed Pegmatite locality, Windham, Cumberland Co., Maine, USA
  • Trott Cove mine, Woolwich, Sagadahoc Co., Maine, USA
  • Unnamed prospect #3, Topsham, Sagadahoc Co., Maine, USA
  • Union Copper/Pioneers/Cosley's/McMalzin's etc, Area mines, Cabarrus Co., North Carolina, USA
  • Unnamed Roadcut locality, Gorham, Cumberland Co., Maine, USA
  • Unnamed Scheelite prospect, Newfield, York Co., Maine, USA
  • Unnamed Uranium prospect, Waterford, Oxford Co., Maine, USA
  • Unnammed Quartz propspects, Chester, Hampden Co., Massachusetts, USA
  • Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA
  • Tie Siding pegmatites, Albany Co., Wyoming, USA
  • Thunder Mt. mine, Waterford, Oxford Co., Maine, USA
  • Thomaston dam, Thomaston, Litchfield Co., Connecticut, USA
  • Trenton mine, Topsham, Sagadahoc Co., Maine, USA
  • Tres Hermanas, Columbus, Luna Co., New Mexico, USA
  • Virginia Lake prospect, Stoneham, Oxford Co., Maine, USA
  • Tower Hill (Cajoot) Lead mine, South Kingston, Washington Co., Rhode Island, USA
  • The-Hole-In-The-Ground mine, Auburn, Androscoggin Co., Maine, USA
  • Tash Ledge locality, Pownal, Cumberland Co., Maine, USA
  • Tate Boulevard Industrial Park, Hickory, Catawba Co., North Carolina, USA
  • Taunton Copper Company Coal mines, Portsmouth, Newport Co., Rhode Island, USA
  • Taylor mine, Freeport, Cumberland Co., Maine, USA
  • Taylorville, Alexander Co., North Carolina, USA
  • Teller Co., Colorado, USA
  • Tilly Foster Mine, Brewster, Putnam Co., New York, USA
  • Terry Fork, Madison Co., North Carolina, USA
  • Truman Patten mine, Alexandria, Grafton Co., New Hampshire, USA
  • Thomas Mine, Pisgah National Forest, Buncombe Co., North Carolina, USA
  • Thomaston Dam Railroad Cut, Thomaston, Litchfield Co., Connecticut, USA
  • Unnamed prospect #1 & 2, Topsham, Sagadahoc Co., Maine, USA
  • Tuscarora mine, near Randolph, Crawford Mts, Rich Co., Utah, USA
  • Mt.Rubellite, Hebron Township, Oxford Co., Maine, USA
  • Mud mine, Alexandria, Grafton Co., New Hampshire, USA
  • Muscovite pegmatite prospect, Albany Co., Wyoming, USA
  • Mt. Ida, Montgomery Co., Arkansas, USA
  • Nason mine, Batchelder's Grant, Oxford Co., Maine, USA
  • Mt. Glines mine, Milton, Oxford Co., Maine, USA
  • near Putney, Vermont, USA
  • Nevel mine, Newry, Oxford Co., Maine, USA
  • New Cornelia Mine, Ajo, Pima Co., Arizona, USA
  • New England Mining & Reduction Comp. prospect, Lyman, Grafton Co., New Hampshire, USA
  • New England Stone Industries quarry, Stonington, Hancock Co., Maine, USA
  • New Haven Mica mine, Alexandria, Grafton Co., New Hampshire, USA
  • Mustonen Ledge prospect, Greenwood, Oxford Co., Maine, USA
  • Mt Monarch Mine, Ouray Co., Colorado, USA
  • Morse mine, Brunswick, Cumberland Co., Maine, USA
  • Mount Apatite, Auburn Township, Sagadahoc Co., Maine, USA
  • Mt.Pisgan Area, Jim Thorpe, Carbon Co., Pennsylvania, USA
  • Mt. Tom mine, Sumner, Oxford Co., Maine, USA
  • Owingsville, Bath Co., Kentucky, USA
  • Trumball Peak, Mariposa Co., California, USA
  • Trumbull Creek Area, Mariposa Co., California, USA
  • Tryon Farm prospect, Pownal, Cumberland Co., Maine, USA
  • Tryon Mt. mines, Pownal, Cumberland Co., Maine, USA
  • Tubbs Ledge mine, Norway, Oxford Co., Maine, USA
  • Tungsten Mine, Trumbull, Fairfield Co., Connecticut, USA
  • United Verde Copper Co., Jerome, Yavapai Co., Arizona, USA
  • Turner mine, Auburn, Androscoggin Co., Maine, USA
  • Unionville, Chester Co., Pennsylvania, USA
  • Twin Pits mine, Topsham, Sagadahoc Co., Maine, USA
  • Twitchell mine, Paris, Oxford Co., Maine, USA
  • Tybo, Utah, USA
  • Undivided mine, Topsham, Sagadahoc Co., Maine, USA
  • Route 1 Amethyst locality, Woolwich, Sagadahoc Co., Maine, USA
  • Turkey Hill locality, Norway, Oxford Co., Maine, USA
  • Nay-Fogg mine, West Milan, Coos Co., New Hampshire, USA
  • Mount Chase Locality, T6 R6 WELS, Penobscot Co., Maine, USA
  • Rocky Pass, near Kuiu and Kupreanof Islands, Alaska, USA
  • "Redstone Green Granite"" quarry, Conway, Carroll Co., New Hampshire, USA"
  • Rico Argentite mine, Rico district, Dolores Co., Colorado, USA
  • Ridgefield, Fairfield Co., Connecticut, USA
  • Rin Mountain, Wausau, Marathon Co., Wisconsin, USA
  • Riverside Silver mine, Rockport, Knox Co., Maine, USA
  • Road Gulch, Fremont Co., Colorado, USA
  • Rhodolite Mine, Wests Mill, Macon Co., North Carolina, USA
  • Pearce Ledge locality, Hebron, Oxford Co., Maine, USA
  • Perry mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Pattuck mine, Alexandria, Grafton Co., New Hampshire, USA
  • Payson, Gila Co., Arizona, USA
  • PC Mine, Jefferson Co., Montana, USA
  • Pea Ridge mine, Sullivan Co., Missouri, USA
  • Peabody Pond Granite quarry, Naples, Cumberland Co., Maine, USA
  • Passaconway Gravel pit, Albany, Carroll Co., New Hampshire, USA
  • Peaked Mt. Fluorite locality, North Conway, Carroll Co., New Hampshire, USA
  • Rich mine, Alexandria, Grafton Co., New Hampshire, USA
  • Rock Landing quarry, Portland, Middlesex Co., Connecticut, USA
  • Reynolds prospect, Lewiston, Androscoggin Co., Maine, USA
  • Robinson mine, Sumner, Oxford Co., Maine, USA
  • Romur tungsten area, Fremont Co., Wyoming, USA
  • Robbins mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Rosiclaire, Hardin Co., Illinois, USA
  • Rossie lead mines, St. Lawrence Co., New York, USA
  • Rotten Rock Pit, Brownfield, Oxford Co., Maine, USA
  • Round Mountain, Nye Co., Nevada, USA
  • Round Mt. Rose Quartz locality, Albany, Oxford Co., Maine, USA
  • Mammoth-St. Anthony mine, Tiger, Pinal Co., Arizona, USA
  • Rogers mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Rich Mts. Area, Watauga Co., North Carolina, USA
  • Powers Mt. mines, Topsham, Sagadahoc Co., Maine, USA
  • Redstone Granite quarry, Westerly, Washington Co., Rhode Island, USA
  • Renfro Valley, Rockcastle Co., Kentucky, USA
  • Revelation mine, Yuma Co., Arizona, USA
  • Reynolds mine, Canton, Oxford Co., Maine, USA
  • Parsonsfield Vesuvianite locality, Parsonsfield, York Co., Maine, USA
  • Pease Mt. locality, Cornish, York Co., Maine, USA
  • Parker Mountain Mountain Mine, Center Strafford, Coos Co., New Hampshire, USA
  • Parkers Head mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Paddock Lead mine, Lyman, Grafton Co., New Hampshire, USA
  • Portland & Strickland Quarries, Portland, Connecticut, USA
  • Plumbago Gem mine, Neary, Oxford Co., Maine, USA
  • Poker Hill, Ashton, Cumberland, Providence Co., Rhode Island, USA
  • Pond Hill locality, Lisbon, Grafton Co., New Hampshire, USA
  • Poole mine, Edgecomb, Lincoln Co., Maine, USA
  • Porcupine Hill mine, Topsham, Sagadahoc Co., Maine, USA
  • Portage Lake Lava area, Keweenaw Co., Michigan, USA
  • Perkins Island Beryl locality, Georgetown, Sagadahoc Co., Maine, USA
  • Porter Lead mine, Porter, Oxford Co., Maine, USA
  • Pitts-Tenney mine, Minot, Androscoggin Co., Maine, USA
  • Portland mine, Acton, York Co., Maine, USA
  • Portland Mine, Ouray Co., Colorado, USA
  • Portland/Vindicator/Golden Cycle etc, Cripple Creek, El Paso Co., Colorado, USA
  • Park City, Summit Co., Utah, USA
  • Park City & Alta, Clayton Peak, Utah, USA
  • Papago mine, Yuma Co., Arizona, USA
  • Pechnick prospect, Rumford, Oxford Co., Maine, USA
  • Pechnik mine, Paris, Oxford Co., Maine, USA
  • Pechnik prospect, Paris, Oxford Co., Maine, USA
  • Pejepscot Mill locality, Topsham, Sagadahoc Co., Maine, USA
  • Preble Hill mine, Garland, Penobscot Co., Maine, USA
  • Peaked Hill mine, Gilead, Oxford Co., Maine, USA
  • Palmer Mt. locality, Stoneham, Oxford Co., Maine, USA
  • Owl's Head prospects, Buckfield, Oxford Co., Maine, USA
  • Oxford Granite quarry, Oxford, Oxford Co., Maine, USA
  • Oxford Silver mine, Milton, Oxford Co., Maine, USA
  • Pacific mine, Yuma Co., Arizona, USA
  • Pack Rat Mine, Carbon Co., Montana, USA
  • Paddock Copper mine, Lyman, Grafton Co., New Hampshire, USA
  • Patch Mt. Beryl prospects, Greenwood, Oxford Co., Maine, USA
  • Palermo Nr 1 mine, North Groton, Grafton Co., New Hampshire, USA
  • Perry Petalite prospect, Peru, Oxford Co., Maine, USA
  • Portsmouth, Newport Co., Rhode Island, USA
  • Rockport, Cape Ann, Essex Co., Massachusetts, USA
  • Mascot Mine, Gorham, Coos Co., New Hampshire, USA
  • Middletown, Newport Co., Rhode Island, USA
  • Morristown Area, Maricopa Co., Arizona, USA
  • Miami, Gila Co., Arizona, USA
  • mica Lode/Meyers/School Section Mines/etc, Royal Gorge Area, El Paso Co., Colorado, USA
  • Mica pegmatite prospect, Converse Co., Wyoming, USA
  • Michigamme, Marquette Co., Michigan, USA
  • Midas, Elko Co., Nevada, USA
  • Mineral Park Mine, Ithaca Peak, Mohave Co., Arizona, USA
  • Middletown Area, Middlesex Co., Connecticut, USA
  • Menominee Range, Dickinson & Iron Co., Michigan, USA
  • Midnight Mine Area, Washington, USA
  • Midvale Mine, Midvale, Rockbridge Co., Virginia, USA
  • Miller adit, Lyman, Grafton Co., New Hampshire, USA
  • Millington quarry, Millington, Somerset Co., New Jersey, USA
  • Mills mines, Hebron, Oxford Co., Maine, USA
  • Middle Moat Mt. locality, Hale's Location, Carroll Co., New Hampshire, USA
  • Custer, Pennington Co., South Dakota, USA
  • Owl's Head Mt. mine, Buckfield, Oxford Co., Maine, USA
  • Morgantown, Burke Co., North Carolina, USA
  • Mason, Mason Co., Texas, USA
  • Marion/Salem/Princeton, Crittendon Co., Kentucky, USA
  • Calumet, Houghton Co., Michigan, USA
  • Mendevil mine, Yuma Co., Arizona, USA
  • Mistake Mine, Wickenburg, Maricopa Co., Arizona, USA
  • Mitchell Mt. mine, Newfield, York Co., Maine, USA
  • Mockus Ledge locality, Peru, Oxford Co., Maine, USA
  • Mohawk Mine, Goldfield, Esmeralda Co., Nevada, USA
  • Mohawk mine, San Bernardino Co., California, USA
  • Mineral Mts. Area, Milford, Beaver Co., Utah, USA
  • Moneta Area, Bedford Co., Virginia, USA
  • Mineral Hill pegmatite area, Crook Co., Wyoming, USA
  • Moody Mt. Beryl locality, Andover Surplus, Oxford Co., Maine, USA
  • Morefield Mine, Winterham, Amelia Co., Virginia, USA
  • Morey, Nye Co., Nevada, USA
  • Morgan Mica prospect, Alexandria, Grafton Co., New Hampshire, USA
  • Rawhide Mine, Rawhide Butte Area, Mohave Co., Arizona, USA
  • Rockport Silver mine, Rockport, Knox Co., Maine, USA
  • Prout Farm prospect, Topsham, Sagadahoc Co., Maine, USA
  • Provence Mt. locality, Newfield, York Co., Maine, USA
  • Providence, Providence Co., Rhode Island, USA
  • Quint Gravel pit, Hale's Location, Carroll Co., New Hampshire, USA
  • Pulsifer Quarry, Auburn Township, Oxford Co., Maine, USA
  • "Redstone Red Granite"" quarry, Conway, Carroll Co., New Hampshire, USA"
  • Purple Passion Mine, Wickenberg, Yavapai Co., Arizona, USA
  • Putney, Windham Co., Vermont, USA
  • Quarries, Tate Area, Pickens Co., Georgia, USA
  • Quarry, Rocky Hill, Somerset Co., New Jersey, USA
  • Quartzite, Yuma Co., Arizona, USA
  • Pulsifer mine & Dionne extension, Auburn, Androscoggin Co., Maine, USA
  • Roncari quarry, East Granby, Hartford Co., Connecticut, USA
  • Redcliff Area, Eagle Co., Colorado, USA
  • Rockford, Coosa Co., Alabama, USA
  • "Rockland-Thomaston Limestone"" quarries, Rockland, Knox Co., Maine, USA"
  • Prospect Park Quarry, Haledon, Passaic Co., New Jersey, USA
  • Princess mine, Yuma Co., Arizona, USA
  • Overlook Quarry, Day, Saratoga Co., New York, USA
  • Pownal Granite quarry, Pownal, Cumberland Co., Maine, USA
  • Radcliff, Hardin Co., Kentucky, USA
  • Ragged Jack Mt. Chrysoberyl locality, Sumner, Oxford Co., Maine, USA
  • Railroad mine, Topsham, Sagadahoc Co., Maine, USA
  • Randall Mt. locality, Parsonsfield, York Co., Maine, USA
  • Randville, Dickinson Co., Michigan, USA
  • Quick Silver Mine etc, Organ Mts. Area, Dona Ana Co., New Mexico, USA
  • Rattlesnake Mt., Stoneham, Oxford Co., Maine, USA
  • Questa Mine, Taos Co., New Mexico, USA
  • Rawley Mine, Thebna, Maricopa Co., Arizona, USA
  • Purington mine, Topsham, Sagadahoc Co., Maine, USA
  • Rare Metals Pegmatite Mine, Kingman, Mohave Co., Arizona, USA
  • Red Hill quarry, near Rumford, Maine, USA
  • Red Cloud Mine, Trego Mts., La Paz Co., Arizona, USA
  • Raymond Granite quarry, Raymond, Cumberland Co., Maine, USA
  • Ray Mica Mine, Yancey Co., North Carolina, USA
  • Rawley Tunnel Mine, Saguache Co., Colorado, USA
  • Pen-y-clun mine, Llanidloes, Dyfed, Wales
  • Grogwinion Mine, Pontrhydygroes, Dyfed, Wales
  • Nant-y-Cagel mine (Eagle Brook), Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Darren Mine, Penbontrhydybeddau, Parcel Canol, Dyfed, Wales
  • Hafan Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Parc Mine, Wrexham, Wales
  • Aberllyn mine, Llanrwst, Bettws-y-coed, Gwynedd, Wales
  • Machen Quarry, Machen, Mid Glamorgan, Wales
  • Parys Mountain mine, Anglesey, Wales
  • Hendre Felen Mine, Ysbyty Ystwyth, Dyfed, Wales
  • Hendre quarry, Glyn Ceiriog, Clwyd, Wales
  • Gwaith Yr Afon mine, Penbontrhydybeddau, Trefeirig, Dyfed, Wales
  • Aberffrwdd Mine, Devil's Bridge, Upper Llanfihangell-y-Creuddyn, Dyfed, Wales
  • Cwmsymlog Mine, Ponterwyd, Dyfed, Wales
  • Glogfawr Mine, Ysbyty Ystwyth, Dyfed, Wales
  • Mynach Vale Mine,Devil's Bridge,Upper Llanfihangell-y-Creuddyn,Dyfed, Wales
  • Nant Helen opencast coal mine, Neath, Wales
  • Mynydd Gorddu Mine, Bontgoch, Ceulanymaesmawr, Dyfed, Wales
  • Bontddu trial level, Bontddu, Gwynedd, Wales
  • Frongoch Mine, Pontrhydygroes, Dyfed, Wales
  • Fron Oleu (Prenteg), Tremadog, Gwynedd, Wales
  • Geufron Mine, Llanidloes, Powys, Wales
  • Nantymwyn Mine, Rhandirmwyn, Llandovery, Dyfed, Wales
  • Blaenceulan Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Snowbrook Mine, Llanidloes, Powys, Wales
  • Nant-y-Car Mine, Rhayader, Powys, Wales
  • Manod Quarry, Blaenau, Festinog, Gwynedd, Wales
  • Tanygrisiau, Gwynedd, Wales
  • Brynyrafr Mine, Talybont, Trefeirig, Dyfed, Wales
  • Taffs Well quarry, Cardiff, Wales
  • Llettyhen Mine (Vaughan), Bontgoch, Tirymynach, Dyfed, Wales
  • Florida Mine, Pontrhydfendigaid, Dyfed, Wales
  • Trecastell Mine, Conway, Gwynedd, Wales
  • Minera (mines), Wrexham, Wales
  • Ton Mawr Quarry, Pentyrch, Cardiff, South Glamorgan, Wales
  • Lodge Park Trial, Tre'r-ddol,Dyfed, Wales
  • Penbontbren Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Llangynog Mine, Llangynog, Powys, Wales
  • Bwlchrehennaid Mine (Level Newydd), Goginan, Tirymynach, Dyfed, Wales
  • Bwlch Glas Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Cerig Yr Wyn Mine, Penbontrhydybeddau, Trefeirig, Dyfed, Wales
  • Esgair Mwyn Mine, Ysbyty Ystwyth, Upper Gwnnws,Dyfed, Wales
  • Esgair Hir mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Plynlimon Mine, Ponterwyd, Dyfed, Wales
  • Dylife Mine, Dylife, Machynlleth, Powys, Wales
  • Dyfngwm mine, Penegoes, Powys, Wales
  • Coed-Ely Mine, Llantrisant, Mid Glamorgan, Wales
  • Drws-y-Coed mine, Llandwrog, Gwynedd, Wales
  • Van Mine, Llanidloes, Powys, Wales
  • Plymlimon, Cardiganshire, Wales
  • Llechwedd Helyg mine, Tir-y-Mynach, Dyfed, Wales
  • Kipushi mine, Lubumbashi, Shaba, Zaire


Usos

El cuarzo es un mineral que tiene una propiedad denominada piezoelectricidad, que consiste en ser capaz de producir una corriente de electrones si se ejerce una presión sobre un extremo de su eje polar. Por esta facultad el cuarzo se utiliza ampliamente en la industria de la óptica, en aparatos de precisión y científicos, para osciladores de radio, como arena se emplea en morteros de hormigón, como polvo en fabricación de porcelanas, pinturas, papel de esmeril, pastillas abrasivas y como relleno de madera.

Además se han utilizado diversas variedades (amatista, ojo de tigre, venturina, etc.) como gemas.

Bibliografía y más información

American Mineralogist, vol. 70, p.874, (1985)
American Mineralogist, vol. 78, p.677-678, (1993)
American Mineralogist, vol. 79, p.269-273, (1994)
Acta Crystallographica, vol. B32, p.2456, (1976)

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