Calcita

Características generales


Datos generales


Fórmula: CaCO3
Sistema de cristalización: Trigonal
Lustre: Vítreo
Color: Incoloro puro; ofrece varias tonalidades de gris, amarillo, marrón, rojo, verde, azul y negro cuando hay impurezas presentes
Dureza: 3
Rareza: muy común
Grupo de minerales: Grupo de la Calcita
Serie: Calcita - Rodocrosita.

La calcita, cuyo nombre deriva del latín calx, es un mineral muy común. Es, en efecto, el componente principal, y a veces el único, de rocas como las calizas, los mármoles y los alabastros, de concreciones como las estalactitas y las estalagmitas, de oolitos, pisolitos y una particular masa llamada leche de monte. Las rocas de las es el principal componente cubren cerca del 40% de la superficie terrestre.

Es un mineral muy abundante y que se suele confundir con otros minerales comunes como la dolomita, el cuarzo, la halita o el yeso, especialmente cuando se presenta masivo o en agregados microcristalinos formando rocas monominerálicas o rellenando fracturas. La mejor forma para identificar a la calcita es por sus cristalización y por el test del ácido, pues este mineral siempre produce efervescencia con, por ejemplo el HCl, ya que en esa reacción se libera CO2, que origina las burbujas.


Fotografías

Puedes ver 24 fotografías de Calcita en su galería de fotografías.

Polimorfos



Clasificación

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

Nickel-Strunz : 05.AB.05
  • 5: Carbonatos (nitratos)
  • 05.A: Carbonatos sin aniones adicionales, sin H2O
  • 05.AB: Carbonatos con tierras alcalinas (y otros M2+)

Dana 8th ed. : 14.1.1.1

Etimología:

Del latín calx, que significa cal.



Formación y ambiente

La calcita es un típico mineral de génesis sedimentaria que se forma bien de forma química mediante evaporación de soluciones muy ricas en bicarbonato cálcico (caliza química), o bien por la actividad de los organismos marinos que forman sus conchas de carbonato cálcico y al morir sedimentan éstas dando lugar a las llamadas calizas organogénicas. También puede tener un origen metamórfico (mármoles, esquistos calcáreos); en algunas raras ocasiones forma rocas ígneas (carbonatitas).

Accesorio, hidrotermal, ígneo, magmático, metamórfico, pegmatítico, postmagmático, postvolcánico, sedimentario.

Propiedades fisicas

Hábito: La calcita se presenta de formas muy variadas, pero las más frecuentes son los cristales romboédricos, escalenoédricos y prismáticos, con posibles combinaciones de estas formas. La calcita puede ser incolora o transparente si es pura (espato de Islandia) o coloreada en los más diversos colores, en relación con la presencia de pigmentos o impurezas. Los escalenoedros muy agudos se conocen como dientes de perro y los muy obtusos, coronando las bases de los prismas trigonales, como cabezas de clavo. Por compresión da lugar a maclas polisintéticas laminares.

Con frecuencia se presenta en forma de masas microcristalinas compactas dando lugar a las calizas, que por metamorfismo originan rocas con una típica estructura sacaroidea, los mármoles. En masas fibrosas la calcita consituye las alabastritas o alabastros; depósitada a partir de aguas ricas en carbonato cálcico, este mineral origina las estalactitas y estalagmitas, los oolitos, los pisolitos y la calcita pulverulenta microcristalina, todos ellos depósitos característicos de cuevas calcáreas; también consitituye los típicos travertinos.

Lustre: Vítreo

Transparencia: Transparente, Opaco

Color: Incoloro puro; ofrece varias tonalidades de gris, amarillo, marrón, rojo, verde, azul y negro cuando hay impurezas presentes

Color en sección fina: Incolora

Raya: Blanco

Dureza (Mohs): 3

Tenacidad: Frágil

Exfoliación::
  • Primera exfoliación: Perfecta en [1011]
  • Segunda exfoliación: Perfecta en [1011]
  • Tercera exfoliación: Perfecta en [1011]


Fractura: Concoidal

Densidad: 2,6-2,7 g/cm3 (medida) | 2,71 g/cm3 (calculada)

Cristalografía

Sistema cristalino: Trigonal

Clase (H-M): 3m (3*2/m) - Hexagonal escalenohedral

Grupo espacial: R3*c

Parámetros de la celda: a=4,989Å b=4,934Å c=17,062Å

Estructura del cristal: α=90º β=90º γ=120º

Volumen de unidad de celda: V 367,78Å

Z: 6

Macla: Cuatro tipos diferentes de macla de contacto

Difracción de Rayos X:
Difracción de Rayos X
D(hkl)Intensidad
3,035100
2,09518
2,28518

Propiedades ópticas

Tipo: Uniaxial (-)

Valores RI: nα= 1,486; nγ= 1,64 - 1,66

Máxima birrefringencia: δ = 0,174

Dispersión: Débil, r<v

Pleocroismo: Pleiocroico

X: Incoloro
Y: Incoloro
Z: Incoloro



Propiedades químicas

Fórmula: CaCO3

Elementos químicos: Ca, C, O

Composición química: C: 12,00%, Ca: 40,04%, O: 47,96%, CO3: 59,94%,

Tests químicos

Fusibilidad: 7; Mineral tipo: Cuarzo; Punto de fusión: 1710ºC; Infusible con soplete
Reacción a los ácidos: Se disuelve con efervescencia en ácido clorhídrico.
Color de la llama: Rojo
Formación de sublimados: Decrepita. Se vuelve brillantemente incandescente
Otros: Puede ser diferenciada del Aragonito por el test de Meigen (ver ficha del aragonito). Se puede diferenciar de la Dolomita por el test de Lemberg, que consiste en hervir una muestra durante 15 minutos con cloruro de aluminio y astillas; la calcita se tiñe de rosa, la dolomita no.

Otras propiedades

Fluorescente:
Fluorescente (LW): Blanco-amarillo, blanco, rojo, naranja, verde o azul.
Termoluminiscente: Blanco-amarillo, blanco, rojo, naranja, verde o azul.
Triboluminiscente: Blanco-amarillo, blanco, rojo, naranja, verde o azul.
Fosforescencia: Bajo luz ultravioleta reflejando los colores verde, amarillo, azul y rojo


Relaciones con otros minerales

Miembro del grupo de minerales: Grupo de la Calcita

Minerales pertenecientes al Grupo de la Calcita

Minerales acompañantes
NombreImagenClase mineralógica
CalcitaCalcita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

CaCO3
EsferocobaltitaEsferocobaltita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

CoCO3
Gaspeita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

Ni(CO3)
Magnesita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

MgCO3
Otavita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

CdCO3
RodocrositaRodocrosita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

MnCO3
SideritaSiderita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

FeCO3
SmithsonitaSmithsonita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

ZnCO3


Minerales acompañantes:

Minerales acompañantes
NombreImagenClase mineralógica
ApatitoApatito8. Fosfatos, arsenatos y vanadatos
08.B: Fosfatos, etc. con aniones adicionales, sin H2O

BaritaBarita7. Sulfatos
07.A: Sulfatos (selenatos, etc.) sin aniones adicionales, sin H2O

BaSO4
BeriloBerilo9. Silicatos
09.C: Ciclosilicatos

Be3Al2(Si6O18)
BiotitaBiotita9. Silicatos
09.E: Filosilicatos

K(Mg, Fe)3AlSi3O10(OH, F)2
CobreCobre1. Elementos nativos
01.A: Metales y Aleaciones de metales

Cu
DolomitaDolomita5. Carbonatos (nitratos)
05.A: Carbonatos sin aniones adicionales, sin H2O

CaMg(CO3)2
FluoritaFluorita3. Haluros
03.A: Haluros simples, sin H2O

CaF2
GalenaGalena2. Sulfuros y sulfosales
02.C: Sulfuros con metal, M:S = 1:1 (y similar)

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

Au
YesoYeso7. Sulfatos
07.C: Sulfatos (selenatos, etc.) sin aniones adicionales, con H2O

CaSO4·2H2O
HematitesHematites4. Óxidos
04.C: Metal:Oxígeno = 2:3, 3:5, y Similar

Fe2O3
HeulanditaHeulandita9. Silicatos
09.G: Tektosilicatos con ceolita H2O

(Na,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
LaumontitaLaumontita9. Silicatos
09.G: Tektosilicatos con ceolita H2O

CaAl2Si4O12·4H2O
CuarzoCuarzo4. Óxidos
04.D: Metal:Oxígeno = 1:2 y similar

SiO2
EsfaleritaEsfalerita2. Sulfuros y sulfosales
02.C: Sulfuros con metal, M:S = 1:1 (y similar)

ZnS
Estilbita9. Silicatos
09.G: Tektosilicatos con ceolita H2O

NaCa4[Al8Si28O72n(H2O) (n=28-32)
AzufreAzufre1. Elementos nativos
01.C: Metaloides y no metales

S8




Yacimientos y localidades de interés

Yacimientos:

Grandes romboedros muy límpidos de calcita se encuentran en las cavidades de los basaltos islandeses (espato de Islandia), así como en Alemania, República Checa y Colorado (Estados Unidos). Cristales rosados o verdosos se han descubierto en Cumberland (Cornualles, Reino Unido). Otras localidades son Joplin (Missouri), donde la calcita aparece asociada a galena y esfalerita, y Freiberg (Alemania). Son también muy conocidos los agregados de calcita procedentes de Fontainebleau (Francia) y de Michigan.

En España son excelentes los cristales en diente de perro que aparecen en los yacimientos de esfalerita y fluorita en Asturias y Cantabria. Excepcionales las grandes masas espáticas, a veces coloreadas, que aparecen junto a la galena en Linares y La Carolina (Jaén). En proximidad de Madrid, en la faja del cretácico calizo se encuentran ejemplares con cristalitos muy brillantes y de buena conformación. Es famoso el Espato de Islandia de la localidad de Dima (Vizcaya) por su pureza.

Localidades

  • South China Sea - Localidad tipo.
  • Ballycraigy, Larne, Co. Antrim, Northern Ireland - Localidad tipo.
  • Molina and Valencia, Migranilla (near), Aragon, Spain - Localidad tipo.
  • Lapis-lazuli mine, Sar-e-Sang, Badakshan Province, Afghanistan
  • Lapis-lazuli mine, Sar-e-Sang, Badakshan Province, Afghanistan
  • Lapis-lazuli mine, Sar-e-Sang, Badakshan Province, Afghanistan
  • Lapis-lazuli mine, Sar-e-Sang, Badakshan Province, Afghanistan
  • Babel Oued, Algeria
  • Alma, Algeria
  • Bougie, Algeria
  • Bougie, Algeria
  • Alma, Algeria
  • Babel Oued, Algeria
  • Bougie, Algeria
  • Alma, Algeria
  • Babel Oued, Algeria
  • Bougie, Algeria
  • Alma, Algeria
  • Babel Oued, Algeria
  • Prospect Hill, New South Wales, Australia
  • Kara mine, Hampshire, Tasmania, Australia
  • Cygnet, Tasmania, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Biggenden, Queensland, Australia
  • Prospect Hill, New South Wales, Australia
  • Middlesex Plains, Tasmania, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Biggenden, Queensland, Australia
  • Cygnet, Tasmania, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Middlesex Plains, Tasmania, Australia
  • Kara mine, Hampshire, Tasmania, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • Kara mine, Hampshire, Tasmania, Australia
  • Prospect Hill, New South Wales, Australia
  • Middlesex Plains, Tasmania, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Prospect Hill, New South Wales, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • Kara mine, Hampshire, Tasmania, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Cygnet, Tasmania, Australia
  • Biggenden, Queensland, Australia
  • Burra Burra mine, Burra, South Australia, Australia
  • Mt Lyell, Tasmania and Tingha, New South Wales, Australia
  • Proprietary mine, Broken Hill, New South Wales, Australia
  • Mt Elliott mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
  • Hartz Ranges, Northern Territory, Australia
  • Colebrook Hill, Rosebery, Tasmania, Australia
  • Cygnet, Tasmania, Australia
  • Middlesex Plains, Tasmania, Australia
  • Mt Cleveland Mine, Luina, Tasmania, Australia
  • Biggenden, Queensland, Australia
  • Obergreuth, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Bleiberg district, Kärnten, Austria
  • Annaberg, Lower Austria, Austria
  • Bergenzerwald, Vorarlberg, Austria
  • Rotgülden, Salzburg, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Weitendorf, Steiermark, Austria
  • Walchen slags, Öblarn, Liezen, Steiermark, Austria
  • Schellgaden, Salzburg, Austria
  • Bleiberg district, Kärnten, Austria
  • Annaberg, Lower Austria, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Bergenzerwald, Vorarlberg, Austria
  • Schellgaden, Salzburg, Austria
  • Schellgaden, Salzburg, Austria
  • Obergreuth, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Annaberg, Lower Austria, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Bleiberg district, Kärnten, Austria
  • Obergreuth, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Rotgülden, Salzburg, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Weitendorf, Steiermark, Austria
  • Walchen slags, Öblarn, Liezen, Steiermark, Austria
  • Bergenzerwald, Vorarlberg, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Rotgülden, Salzburg, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Bleiberg district, Kärnten, Austria
  • Weitendorf, Steiermark, Austria
  • Walchen slags, Öblarn, Liezen, Steiermark, Austria
  • Obergreuth, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Rotgülden, Salzburg, Austria
  • Schwaz-Brixlegg, Tyrol, Austria
  • Weitendorf, Steiermark, Austria
  • Walchen slags, Öblarn, Liezen, Steiermark, Austria
  • Schellgaden, Salzburg, Austria
  • Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
  • Bergenzerwald, Vorarlberg, Austria
  • Annaberg, Lower Austria, Austria
  • Dashkesan mine, Caucasus mts, Azerbaijan
  • Dashkesan mine, Caucasus mts, Azerbaijan
  • Landelies, Hainaut, Walloon Brabant, Belgium
  • Denee, Namur, Walloon Brabant, Belgium
  • Villiers en Fagne, Namur, Walloon Brabant, Belgium
  • Bioul, Namur, Walloon Brabant, Belgium
  • Arquennes, Hainaut, Walloon Brabant, Belgium
  • Seilles, Namur, Walloon Brabant, Belgium
  • Engis, Liege, Walloon, Belgium
  • Rhisnes, Namur, Walloon Brabant, Belgium
  • Canal Willebroeck, Charleroi, Blaton, Hainaut, Belgium
  • Chokier, Liege, Walloon Brabant, Belgium
  • Gralex Quarry, Mont-sur-Marchienne, Hainaut, Belgium
  • Quenast, Brabant, Walloon Brabant, Belgium
  • Comblain, Belgium
  • Cerro Rico Mt., Potosí, City, Potosí Dept, Bolivia
  • Aliada Mine, Colquechata Mt., Chayanta, Potosí Dept, Bolivia
  • El Dragón mine, Quijarro, Potosí Dept, Bolivia
  • Potosí Dept, Bolivia
  • Quime, Inquisivi, La Paz, Bolivia
  • Morro Velho Gold mine, Nova Lima, Minas Gerais, Brazil
  • Irai, Rio Grande do Sul, Brazil
  • Sao Gabriel, Rio Grande do Sul, Brazil
  • Deveti Septemvri Mine, Madan, Rhodope Mtns., Plovdiv, Bulgaria
  • Madan, Rhodope Mtns., Plovdiv, Bulgaria
  • Droujba, Laki, Rhodope Mtns., Plovdiv, Bulgaria
  • Lincoln Quarry, Beamsville, Ontario, Canada
  • Beaverdell, British Columbia, Canada
  • Bicroft mine, Bancroft, Hastings Co., Ontario, Canada
  • Bessemer Mine, Mayo Township, Bancroft, Hastings Co., Ontario, Canada
  • Hwy 28 road fill, Mayo Township, Bancroft, Hastings Co., Ontario, Canada
  • Jeffrey pit, Asbestos, Shipton Twp., Richmond Co., Québec, Canada
  • Egan Chute, Dungannon Township, Bancroft, Hastings Co., Ontario, Canada
  • Engineer mine, Tagish Lake, near Atlin, British Columbia, Canada
  • Lake George antimony mine, York Co., New Brunswick, Canada
  • Lake Clear - Kuehl Lake area, Renfrew Co., Ontario, Canada
  • Evans-Lou pegmatite, near St-Pierre-de-Wakefield, Portland Twp., Papineau Co., Québec, Canada
  • Cardiff Uranium mine, Wilberforce, Ontario, Canada
  • Cameron Quarry, Carleton Place, Ontario, Canada
  • Davis Hill, Dungannon Township, Bancroft, Hastings Co., Ontario, Canada
  • Desmont Mine, Wilberforce, Monmouth Township, Haliburton Co., Ontario, Canada
  • Demix-Varennes quarry, Saint-Amable sill, Varennes, Verchéres Co., Québec, Canada
  • Davis Quarry, Dungannon Township, Bancroft, Hastings Co., Ontario, Canada
  • Bancroft, Hastings Co., Ontario, Canada
  • MacDonald mine, Monteagle Township, Bancroft, Hastings Co., Ontario, Canada
  • Yates Uranium mine, Otter Lake, Pontiac Co., Ontario, Canada
  • Yellow Lake, near Olalla, British Columbia, Canada
  • Ackerman mine, Deloro, Hastings Co., Ontario, Canada
  • York River Skarn, Dungannon Township, Bancroft, Hastings Co., Ontario, Canada
  • Burgess Mine, Carlow Township, Bancroft, Hastings Co., Ontario, Canada
  • East Kemptville Tin Mine, East Kemptville, Yarmouth Co., Nova Scotia, Canada
  • Dundas Quarry, Wentworth Co., Ontario, Canada
  • Meany Mine, Lake Clear, Renfrew Co., Ontario, Canada
  • Sherbrooke, Québec, Canada
  • Mt St.-Hilaire, Rouville Co., Québec, Canada
  • Orford Nickel mine, Québec, Canada
  • Port Radium, Northwest Territories, Canada
  • Poudrette quarry, Mt St.-Hilaire, Rouville Co., Québec, Canada
  • Parker mine, Notre Dame du Laus, Québec, Canada
  • Turner's Island Mine, Lake Clear, Renfrew Co., Ontario, Canada
  • Van Silver mine, Brandywine Creek, British Columbia, Canada
  • Nanisivik Mine, Baffin Island, Nunavut, Northwest Territories, Canada
  • Woodcox Mine, Bancroft, Monteagle Township, Hastings Co., Ontario, Canada
  • Southern Baffin Island, Nunavut, Northwest Territories, Canada
  • Taylor pit, Madoc, Huntingdon, Hastings Co., Ontario, Canada
  • Smart Mine, Lake Clear, Renfrew Co., Ontario, Canada
  • Silvana mine, Sandon, British Columbia, Canada
  • Lac Nicolet mine, Ham Sud, Wolfe Co., Québec, Canada
  • Henderson No.2 mine, Chibougamau, Abitibi Co., Québec, Canada
  • Faraday mine, Faraday Township, Bancroft, Hastings Co., Ontario, Canada
  • Highland Bell mine, Beaverdell, British Columbia, Canada
  • Highway 105, Old Chelsea, Hill Township, Gatineau Co., Québec, Canada
  • Highway 28 Roadcut Near Belton Road, Mayo Township, Bancroft, Hastings Co., Ontario, Canada
  • Glen Lake Mine, Cobalt, Timiskaming district, Ontario, Canada
  • Francon quarry, St-Michel distr., Montreal Island, Québec, Canada
  • Wilberforce, Haliburton Co., Ontario, Canada
  • Silver Islet mine, Lake Superior, Ontario, Canada
  • Silver Crater mine, Faraday Township, Bancroft, Hastings Co., Ontario, Canada
  • Saranac Mine, Tory Hill, Monmouth Township, Hastings Co., Ontario, Canada
  • Rogers Fluorspar mine, Huntingdon Township, Madoc, Hastings Co., Ontario, Canada
  • Henyan, Hunan Province, China
  • Kaiyang, Guizhou Province, China
  • Chenzou mine, Hunan province, China
  • Soutesky, Decin, Krusne Hory, Vychodocesky, Czech Republic
  • Medenec (Kupferberg), Chomutov, Krusne Hory, Vychodocesky, Czech Republic
  • Predborice, Stredocesky kraj, Bohemia, Czech Republic
  • Kank, Kutna Hora, Stredocesky kraj, Bohemia, Czech Republic
  • Vlastejovice, Kutna Hora, Stredocesky, Czech Republic
  • Moldava, Teplice, Krusne Hory, Vychodocesky, Czech Republic
  • Trebsko Deposit, Príbram, Stredocesky, Czech Republic
  • Krasna Hora nad Vltavou, Príbram, Stredocesky, Czech Republic
  • Policany, Kutna Hora, Czech Republic
  • Kasejovice, Západocesky, Czech Republic
  • Horni Hostice, Maehren, Czech Republic
  • Studenec, Jilemnice, Vychodocesky, Czech Republic
  • Vsechlapy, Teplice, Krusne Hory, Vychodocesky, Czech Republic
  • Dobrna, Decin, Krusne Hory, Vychodocesky, Czech Republic
  • Borovec, Zdar nad Sazavou, Maehren, Czech Republic
  • Bezdecin, Zelezny Brod, Severocesky, Czech Republic
  • Hütte, Príbram, Stredocesky, Czech Republic
  • Horni Bory, Zdar nad Sazavou, Maehren, Czech Republic
  • Bohutin, Príbram, Stredocesky, Czech Republic
  • Doubravice, Jicin, Vychodocesky, Czech Republic
  • Libodrice, Kutna Hora, Stredocesky, Czech Republic
  • Lill mine, Brezove hory (Birkenberg), Príbram, Stredocesky, Czech Republic
  • Litce nad Orlici, Vychodocesky, Czech Republic
  • Krupka, Krusne Hory, Vychodocesky, Czech Republic
  • Alexander Gallery, Vrancice, Príbram, Stredocesky, Czech Republic
  • Westmanhaven, Faroe Islands, Denmark
  • Vaago, Faroe Islands, Denmark
  • Fuglo, Faroe Islands, Denmark
  • Graphite Mine, Seathwaite, Cumbria, England
  • Haille Moor Mine, Beckermet, Cumbria, England
  • Groverake mine, Rookhope, Weardale, Co. Durham, England
  • Greystones quarry, Lezant, Cornwall, England
  • Greenside mine, Patterdale, Cumbria, England
  • Great Sled Dale, Swaledale, Yorkshire, England
  • Higher Pitts mine, Priddy, Mendip Hills, Somerset, England
  • Isolation Mine, Snelstone Nr Ashbourne, Derbyshire, England
  • Judkins quarry, Nuneaton, Warwickshire, England, England
  • Hilston Beaches, Holderness, Humberside, England
  • Hodbarrow mine, Cumbria, England
  • Hope's Nose, Tor Bay, Torquay, Devon, England
  • Dutchman Level Dump, Ecton Hill, Wetton, Staffordshire, England
  • Drakewalls mine, Calstock, Cornwall, England
  • Driggith Mine, Caldbeck Fells, Cumbria, England
  • Dry Gill mine, Caldbeck Fells, Cumbria, England
  • Hay Gill Copper mine, Caldbeck Fells, Cumbria, England
  • Cuckmere Haven, East Sussex, England
  • Lulworth Cove, Dorset, England
  • Boltsburn mine, Rookhope, Weardale, Co. Durham, England
  • Bonsall Moor Quarry, Winster, Derbyshire, England
  • Bonser Mine, Coniston copper mines, Cumbria, England
  • Botallack mine, Botallack, St. Just, Cornwall, England
  • Baron Cross Quarry, Stainton, Cumbria, England
  • Barrow Mine, Braithwaite, Cumbria, England
  • Batts Coombe Quarry, Cheddar, Somerset, England
  • Beckermet Mine, Egremont, Cumbria, England
  • Lyme Regis, Dorset, England
  • Heights mine, Eastgate, Weardale, Co. Durham, England
  • Hampstead Farm quarry, Chipping Sodbury, Gloucestershire, England
  • Heights Quarry, Westgate, Weardale, Co. Durham, England
  • Herodsfoot mine, Lanreath, Cornwall, England
  • Herrods Hill, Huthwaite, Nottinghamshire, England
  • Birchington, Kent, England
  • Dulcoate quarry, Somerset, England
  • Eagle Crag Mine, Patterdale, Cumbria, England
  • Gillfoot Park & Helder Mines, Egremont, Cumbria, England
  • Engine Vein, Alderley Edge, Shropshire, England
  • Force Crag Mine, Keswick, Cumbria, England
  • Eskett Quarry, Rowrah, Cumbria, England
  • Florence mine, Egremont, Cumbria, England
  • Flusco Quarry, Newbiggin, Cumbria, England
  • Mossbay Mine, Bigrigg, Cumbria, England
  • Mosedale Quarry, Mosedale, Carrock Fell, Cumbria, England
  • Millclose mine, Wensley, Derbyshire, England
  • Milltown Quarry, Ashover, Derbyshire, England
  • Millrigg Mine, Staveley, Cumbria, England
  • Mountfield Mine, Mountfield, Sussex, England
  • Merehead quarry, near Cranmore, Mendips, Somerset, England
  • Matlock, Derbyshire, England
  • Meldon BR Quarry, Okehampton, Devon, England
  • Geevor mine, Trewellard, St. Just, Cornwall, England
  • Garrigill, Cumbria, England
  • Ecton Hill,Clayton Adi, Ecton Hill, Staffordshire, England
  • Egremont, Cumbria, England
  • Dulcote Quarry, Wells, Somerset, England
  • Levant mine, Pendeen, St. Just, Cornwall, England
  • Dean quarry, St. Keverne, Cornwall, England
  • Deer Hills Baryte mine, Caldbeck Fells, Cumbria, England
  • Delabole Slate quarry, Tintagel, Cornwall, England
  • Dovedale Farm., Hardwick Hall, Nottinghamshire, England
  • Leighton Buzard, Bedfordshire, England
  • Ejam, Derbyshire, England
  • Dirtlow Rake, Castleton, Derbyshire, England
  • Distington Quarries, Distington, Cumbria, England
  • Dodington mine, Bridgewater, Somerset, England
  • Ladywell mine, Shelve, Shropshire, England
  • Frazer's Hush mine, Rookhope, Weardale, Co. Durham, England
  • Meden Bank, Stanton Hill, Nottinghamshire, England
  • Bigrigg mine, Egremont, Cumbria, England
  • Old Millclose Mine, Matlock, Derbyshire, England
  • Shap Beck Qry, Shap, Cumbria, England
  • Shap Blue Quarry, Shap, Cumbria, England
  • Shap Pink Quarry, Shap, Cumbria, England
  • Silver Gill, Caldbeck Fells, Cumbria, England
  • Slayley Quarry, Bonsal, Derbyshire, England
  • Smallcleugh mine, Nenthead, Cumbria, England
  • Snailbeach mine, Snailbeach, Shropshire, England
  • Stank Mine, Barrow, Cumbria, England
  • Squilver Quarry, Dysgwylfa Hill, Shropshire, England
  • Springhill quarry, Peldar Tor, Whitwick, Leicestershire, England
  • Waterbank mine, Ecton, Staffordshire, England
  • Porthoustock quarry, St. Keverne, Cornwall, England
  • Port Quin, St. Endellion, Cornwall, England
  • Penberthy Croft mine, St. Hilary, Cornwall, England
  • Pike Lane Opencut, Winster Moor, Derbyshire, England
  • Sidestrand (beach), Cromer, Norfolk, England
  • Sacheveral Farm, Winster, Derbyshire, England
  • Vale Road Quarry, Mansfield Woodhouse, Nottinghamshire, England
  • Old Potts Gill mine, Caldbeck Fells, Cumbria, England
  • Parkhouse Quarry, Johnby, Cumbria, England
  • Pallaflat Mine, Bigrigg, Cumbria, England
  • Newlandside Quarry, Stanhope, Co. Durham, England
  • Nentsberry Haggs mine, Nenthead, Cumbria, England
  • New Cliffe Hill quarry, Markfield, Leicestershire, England
  • New Aplite Quarry, Meldon, Okehampton, Devon, England
  • Tynebottom mine, Garrigill, Cumbria, England
  • Roughton Gill Mine, Caldbeck Fells, Cumbria, England
  • Threlkeld Quarry, Threlkeld, Cumbria, England
  • Thurstaston Beach, Wirral, Merseyside, England
  • Rotherhope Fell Mine, Alston, Cumbria, England
  • Wapping mine, Matlock Bath, Derbyshire, England
  • Warden Point, Isle of Sheppey, Kent, England
  • Rorrington Mine, Chirbury, Shropshire, England
  • Wheal Owles, St. Just, Cornwall, England
  • Windscales, Egremont, Cumbria, England
  • Blagill mine, Alston moor, Cumbria, England
  • Dale Head Mine, Newlands Valley, Cumbria, England
  • Boyers quarry, Isle of Portland, Dorset, England
  • Bramham, Yorkshire, England
  • Brownley Hill Pb-Zn mine, Nenthead, Cumbria, England
  • Coldstones Quarry, Greenhow, Yorkshire, England
  • Colemans Quarry, Holwell, Nr. Frome, Somerset, England
  • Coniston Copper Mines, Coniston, Cumbria, England
  • Crich Quarry, Crich, Derbyshire, England
  • Croft pit, Bigrigg, Egremont, Cumbria, England
  • Croft quarry, Leicestershire, England
  • Charmouth beach, Dorset, England
  • Cleator Moor Iron Mines, Cleator Moor area, Cumbria, England
  • Ball Eye quarry, Bosnal, Derbyshire, England
  • Magpie Sough, Sheldon, Derbyshire, England
  • Barden Hill Quarry, Coalville, Leicestershire, England
  • Carrock mine, Caldbeck Fells, Cumbria, England
  • Cannington Park Quarry, Bridgewater, Somerset, England
  • Cammock Eals mine, Stanhope, Weardale, Co. Durham, England
  • Wheal Mary Ann, Menheniot, Cornwall, England
  • Red Gill mine, Caldbeck Fells, Cumbria, England
  • West Pastures Mine, Stanhope, Weardale, Co. Durham, England
  • Wheal Wrey, Liskeard, Cornwall, England
  • Wetgrooves Mine, Aysgarth, Yorkshire, England
  • Whale Chine, Atherfield, Isle of Wight, England
  • Whatley Quarry, Wells, Somerset, England
  • Wheal Cock, Botallack, St. Just., Cornwall, England
  • Wheal Edward, St. Just, Cornwall, England
  • Cambokeels mine, near Eastgate, Weardale, Co. Durham, England
  • Wyndham Pit, Nr. Egremont, Cumbria, England
  • Wirksworth, Rent Tor, Derbyshire, England
  • Weardale, Co. Durham, England
  • Wyche Quarries, Worcestershire, England
  • Woodleaze Quarry, Tytherington Quarries, Gloucestershire, England
  • Wheal Friendship, Mary Tavy, Devon, England
  • Pargas, Turku-Pori, Finland
  • Les Farges mine, Corrèze, Limousin, France
  • Monsols, Rhône, Rhône-Alpes, France
  • Bellecroix, Fontainebleau, Seine-et-Marne, France
  • Jas Roux, Valgaudemar, Haute-Alpes, France
  • Mt Roussi, near Servoz, Haute-Savoie, France
  • La Pacaudière, Le Crozet, Loire, Rhône-Alpes, France
  • Cap Garonne, Le Pradet, Var, France
  • Falgayrolles, Aveyron, Midi-Pyrénées, France
  • Duranus, Alpes-Maritimes, France
  • Roua mine, Guillaumes, Alpes-Maritimes, France
  • Chessy-les-Mines, Rhône, Rhône-Alpes, France
  • Mas d'Alary, Hérault, Languedoc-Roussillon, France
  • Tistoulet mine, Padern, Aude, Languedoc-Roussillon, France
  • Trimouns Talc mine, Ariège, Midi-Pyrénées, France
  • Hilfe Gottes mine, Wiemannsbucht, Bad Grund, Harz Mts, Sachsen, Germany
  • Himmelfürst mine, Freiberg, Sachsen, Germany
  • Sangerhausen, Sachsen, Germany
  • Glücksrad mine, Clausthal-Zellerfeld, Harz Mts, Sachsen, Germany
  • Mommel mine, Kohlberg, Trusetal, Bad Salzungen, Thüringen, Germany
  • Michelsberg mine, Gutachtal, Kinzigtal, Baden-Wuerttemberg, Germany
  • Herzog Friedrich mine, Reinerzau, Alpirsbach, Baden-Wuerttemberg, Germany
  • Spitzenberg mines, Bad Harzburg, Harz Mts, Sachsen, Germany
  • Herzog-Julius-Hütte, Goslar, Harz Mts, Sachsen, Germany
  • Stahlberg mine, Kohlberg, Trusetal, Bad Salzungen, Thüringen, Germany
  • Hechtsberg quarry, Kinzigtal, Baden-Wuerttemberg, Germany
  • Steinbissäge, Gremmelsbach, Kinzigtal, Baden-Wuerttemberg, Germany
  • Kochenfeld mine, Trusetal, Bad Salzungen, Thüringen, Germany
  • Karem quarry, Birresborn, Eifel, Germany
  • Gottlob mine, Friedrichroda, Bad Salzungen, Thüringen, Germany
  • Schweina-Glücksbrunn, Bad Liebenstein, Eisenach, Thüringen, Germany
  • Fünf Bücher Mosis mine, St. Andreasberg, Harz Mts, Sachsen, Germany
  • Johann mine, Wittichen, Baden-Wuerttemberg, Germany
  • Ferdinand mine, Alpirsbach, Baden-Wuerttemberg, Germany
  • Johannis Segen mine, Kinzigtal, Baden-Wuerttemberg, Germany
  • Ettringer Bellerberg, Ettringen, Mayen, Eifel, Rheinland-Pfalz, Germany
  • Kafersteige mine, Pforzheim, Baden-Wuerttemberg, Germany
  • Urberg, St. Blasien, Baden-Wuerttemberg, Germany
  • Friedenstein mine, Ruhla, Bad Salzungen, Thüringen, Germany
  • Fohberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Floßberg mine, Bad Lauterberg, Harz Mts, Sachsen, Germany
  • St. Andreasberg, Hartz Mts, Niedersachsen, Germany
  • Heimberg quarry, Möncheholz, Langelsheim, Harz Mts, Sachsen, Germany
  • Humberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Arensberg quarry, Zilsdorf, Rheinland-Pfalz, Germany
  • Orberg-Badberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Bärensteinbruch quarry, Radautal, Bad Harzburg, Harz Mts, Sachsen, Germany
  • Wenzel mine, Oberwolfach, Baden-Wuerttemberg, Germany
  • Lautenthaler Hütte, Langelsheim, Harz Mts, Sachsen, Germany
  • Wolkenhügel mine, Bad Lauterberg, Harz Mts, Sachsen, Germany
  • Limburg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Claus-Friedrich mine, St. Andreasberg, Harz Mts, Sachsen, Germany
  • Clara mine, Oberwolfach, Baden-Wuerttemberg, Germany
  • Nesselgrund quarry, Schnellbach, Bad Salzungen, Thüringen, Germany
  • Winterberg quarry, Bad Grund, Harz Mts, Sachsen, Germany
  • Rammelsberg mine, Goslar, Harz Mts, Sachsen, Germany
  • Atterode mine, Bad Salzungen, Thüringen, Germany
  • Artenberg quarry, Kinzigtal, Baden-Wuerttemberg, Germany
  • Hühn mine, Trusetal, Bad Salzungen, Thüringen, Germany
  • Rötenbach quarry, Alpirsbach, Baden-Wuerttemberg, Germany
  • Huneberg quarry, Bad Harzburg, Harz Mts, Sachsen, Germany
  • Glückauf mine, Bad Grund, Harz Mts, Sachsen, Germany
  • Sangershausen, Thuringia, Sachsen, Germany
  • Kirchberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
  • Andreasberg, Harz Mtns., Niedersachsen, Germany
  • Anton mine, Heubachtal, Wittichen, Baden-Wuerttemberg, Germany
  • Pflasterkaute quarry, Eisenach, Thüringen, Germany
  • Ochsenhütte, Granestausee, Goslar, Harz Mts, Sachsen, Germany
  • Biseschacht am Iberg, Bad Grund, Harz Mts, Sachsen, Germany
  • Ludwig mine, Aldersbachtal, Hausach, Baden-Wuerttemberg, Germany
  • Daniel mine, Schneeberg, Sachsen, Germany
  • Milos, Kikladhes, Southern Aegean, Greece
  • Kamaréza Central mine, Laurion, Attica, Greece
  • Hilarion adit, Agios Konstandinos, Laurion, Attica, Greece
  • Ilimaussaq, West Greenland
  • Fiskenaesset, Nuuk, Greenland
  • Fiskenaesset, Greenland
  • Winterswijk, Gelderland, Holland
  • Rudabanya, Borsod-Abaúj-Zemplén County, Hungary
  • Breidhdalur-Berufsjördhur area, Iceland
  • Lonavala, Poona, India
  • Khandivali quarry, Bombay, India
  • Silvermines district, Co. Tipperary, Ireland
  • Gortdrum mine, Co. Tipperary, Ireland
  • Mogul mine, Silvermines district, Co. Tipperary, Ireland
  • Luganure mines, Glendasan, Co. Wicklow, Ireland
  • Great Laxey Mine, Laxey, Isle of Man
  • Val Graveglia, Liguria, Italy
  • Varsi, Parmense Apennines, Italy
  • Scrava Mine, Val Graveglia, Liguria, Italy
  • Carrara, Tuscany, Italy
  • Cerchiara manganese mine, Val di Vara, Liguria, Italy
  • Seravezza, Tuscany, Italy
  • Buca della Vena mine, Stazzema, Alpe Apuane, Lucca, Tuscany, Italy
  • Baveno, Lago Maggiore, Piedmont, Italy
  • Corcolle, Tivoli, nr Rome, Italy
  • Agrigento, Sicily, Italy
  • Montalto di Castro, Viterbo, Italy
  • Mount Vesuvius, Naples, Campania, Italy
  • Racalmuto, Girgenti, Sicily, Italy
  • Punta Bianca, La Spezia, Italy
  • Fuka mine, Bicchu-cho, Kawakami, Okayama Pref., Japan
  • Rudnyi, Kazakhstan
  • Kvartsitovje Gorki, Kazakhstan
  • Sarbay silver mine, Rudni, Kusteni Oblast, Kazakhstan
  • Sokolovskoye, Rudnyi, Kazakhstan
  • Arzak and Kadyrel deposits, Tuva, Russia
  • Taehwa mine, Neungam-ri, Angseong-myeon, Chungju, Chungcheongbukdo, South Korea
  • Chaidarkan, Alai, Kyrgyzstan
  • Chauvay, Alai, Kyrgyzstan
  • Khaidarkan deposit, Kyrgyzstan
  • Allchar, Macedonia
  • Mt Malosa, Zomba, Malawi
  • Naica, Chihuahua, Mexico
  • Hidalgo de Parral, Chihuahua, Mexico
  • La Negra mine, Queretaro, Mexico
  • Chihuahua, Mexico
  • Batopilas district, Chihuahua, Mexico
  • Charcas, San Luis Potosi, Mexico
  • Ahumada & Erupcion mines, Sierra de Los Lamentos, Chihuahua, Mexico
  • Boleo, Santa Rosalia, Baja California, Mexico
  • Aquilesas Serdan, Chihuahua, Mexico
  • Catorce, San Luis Potosi, Mexico
  • La Sirena Mine, Guanajuato, Mexico
  • Los Lamentos Mine, Chihuahua, Mexico
  • Santin mine, Santa Catarina, Cerro de las Fajas, Guanajuato, Mexico
  • Mina Sirena, Guanajuato, Mexico
  • Mina Ojuela, Mapimi, Durango, Mexico
  • Matehuala, San Luis Potosi, Mexico
  • Santa Eulalia, Chihuahua, Mexico
  • San Antonio Mine, Santa Eulalia, Chihuahua, Mexico
  • Sombrereta mine, Zacatecas, Mexico
  • Fez, Atlas Mts., Morocco
  • Tsumeb, Namibia
  • Tsumeb mine, Tsumeb, Otavi, Namibia
  • Gross Otavi mine, Otavi, Namibia
  • Abaneb West mine, Otavi, Namibia
  • Alt Bobos mine, Otavi, Namibia
  • Rössing Mine, Rössing, Namibia
  • Friesenberg, Otavi, Namibia
  • Kombat mine, Tsumeb, Otavi, Namibia
  • Baltika mine, Otavi, Namibia
  • Aris quarry, Windhoek, Namibia
  • Berg Aukas, Otavi, Namibia
  • Watsons Beach, Otago, New Zealand
  • Glenarm, County Antrim, Northern Ireland
  • Magheramorne quarry, Co. Antrim, Northern Ireland
  • Einerkilen, Flåt, Evje, Aust-Agder, Norway
  • Eg, Kristiansand, Vest-Agder, Norway
  • Kongsberg, Buskerud, Norway
  • Buö, Arendal, Froland, Aust-Agder, Norway
  • Evje-Ivedal, Iveland, Aust-Agder, Norway
  • Muslim Bagh, Balochistan, Pakistan
  • Wama, near Toei, South Waziristan, Afghanistan
  • Huaron mine, Pasco Dept., Peru
  • Milpo mine, Pasco Dept., Peru
  • Pasta Bueno mine, Ancash Dept., Peru
  • Casapalca Mine, Lima Dept., Peru
  • Machow mine, near Tarnobrzeg, Tarnobrzeg, Poland
  • Panasqueira mine, Panasqueira, Beira-Beixa, Portugal
  • Baroca Grande mine, Panasqueira, Beira-Beixa, Portugal
  • Herja (Hersza), Chiuzbaia (Kisbanya), Judetul Maramures, Romania
  • Boldut Mine, Cavnic, Maramures Co., Romania
  • Sokolovskoe Iron Mine, Rudnyym, Kustany Oblast, Russia
  • Polar Urals, Tyumen Oblast, Russia
  • near St. Petersburg, Karelia, Russia
  • Puiva, Saranpual, Polar Urals, Russia
  • Pay Khoy, Silova river, Russia
  • Nikolaevskiy, Dal'negorsk, Primorskiy Kray, Russia
  • Solongo skarn deposit, Buryatia, Russia
  • Sadoviy, Dal'negorsk, Primorskiy Kray, Russia
  • Olenitsa River, Murmansk, Russia
  • Srednyaya Padma deposit, Karelia, Russia
  • Sentyabr'skiy, Dal'negorsk, Primorskiy Kray, Russia
  • Slyudyanka complex, Lake Baikal region, Zabaikalye (Transbaikal), Siberia, Russia
  • Verchniy Mine, Dal'negorsk, Primorskiy Kray, Russia
  • Rodnikovoe, Kamchatka, Russia
  • Murun massif, Davan, Torgo river basin, Aldan Shield, Yakutia, Siberia, Russia
  • Vuoriyarvi massif, North Karelia, Murmansk region, Kola Peninsula, Russia
  • Kirovsky mine, Mt Kukisvumchorr, Khibiny, Kola Peninsula, Russia
  • Kovdor massif and Khibina massif, Vuonnemi River, Kola Peninsula, Russia
  • Krokhalin mine, Magadan region, Kolyma River, Russia
  • 1st Sovietski mine, Dal'negorsk, Primorskiy Kray, Russia
  • 2nd Sovietski mine, Dal'negorsk, Primorskiy Kray, Russia
  • Aldan Shield, Yakutiya, Siberia, Russia
  • Bor, Dal'negorsk, Primorskiy Kray, Russia
  • Lake Baikal, Siberia, Russia
  • Danburity, Dal'negorsk, Primorskiy Kray, Russia
  • Kadamtschai, Krgizia, Kazakstan
  • Mutnovskoe, Kamchatka, Russia
  • Novofrolovskoye Cu deposit, Ural Mts., Russia
  • Dal'negorsk, Primorskiy Kray, Russia
  • Dal'negorsk, Russia
  • Dodo mine, Polar Urals, Tyumen Oblast, Russia
  • Lealt, Staffin, Totternish, Isle of Skye, Scotland
  • Coire Buidhe, Glen Creran, Argyll & Bute, Scotland
  • Leadhills-Wanlockhead district, Strathclyde/Dumfries and Galloway, Scotland
  • Rhuba a'Mhill, Isle of Islay, Scotland
  • Eas a Bradain, Luib, Isle of Skye, Scotland
  • Whitesmith mine, Strontian, Argyll & Bute, Scotland
  • Moniack Burn, S. Clunes, Highland, Scotland
  • Marsco, Sligachan, Isle of Skye, Scotland
  • Mannoch Hill Mine, Lesmahgow, South Lanarkshire, Scotland
  • Muirshiel Mine, Renfrewshire Heights, Scotland
  • Moonen Bay, Isle of Skye, Scotland
  • Middleshop mine, Strontian, Argyll & Bute, Scotland
  • Ardownie quarry, Monifieth, Tayside, Scotland
  • New Glencrieff Mine, Wanlockhead, Dumfries & Galloway, Scotland
  • Broadford (Broadford Gabbro), Broadford, Isle of Skye, Scotland
  • Carsaig Bay, Carsaig, Isle of Mull, Scotland
  • Bellsgrove mine, Strontian, Argyll & Bute, Scotland
  • Loanhead quarry, near Beith, Strathclyde, Scotland
  • Boyleston Quarry, Barrhead, Glasgow, Scotland
  • Talisker Bay, Isle of Skye, Scotland
  • Goat Quarry, Aberdour, Fife, Scotland
  • Trearne Quarry, Beith, Ayrshire, Scotland
  • Hartfield Moss, Strathclyde, Scotland
  • Sligachan quarry, Sligachan, Isle of Skye, Scotland
  • Clashgorm mine, Strontian, Argyll & Bute, Scotland
  • Clyde river, Cardross, Argyll & Bute, Scotland
  • Coatsgate Quarry, Dumfries & Galloway, Scotland
  • Hilderston Quarry, West Lothian, Scotland
  • Silver Glen, Clackmannanshire, Scotland
  • Sgurr Nam Boc, Isle of Skye, Scotland
  • Orrock Quarry, Kirkcaldy, Fife, Scotland
  • Trepca, Serbia
  • Stari Trg Mine, Trepca, Serbia
  • Pezinok Mine, Malé Karpaty Mts, Slovakia
  • Mezica mine, Mezica, Slovenia
  • Idria, Carniola, Slovenia
  • Wessels mine, Kalahari Mn field, Kuruman Hill, Cape Province, South Africa
  • Nchwaning II mine, near Kuruman, Cape Province, South Africa
  • Palabora mine, Loolekop, Transvaal, South Africa
  • Hotazel mine, Kalahari, Cape Province, South Africa
  • Messina, Transvaal, South Africa
  • N'Chwaning II mine, Kalahari, Cape Province, South Africa
  • Nchwaning Mine, Kalahari, South Africa
  • Mina Berta, Sant Cugat del Vallès-El Papiol, Barcelona, Spain
  • Villabona mine, near Oviedo, Asturias, Spain
  • Mina La Florida, Cantabria, Spain
  • Calpe, Alicante, Spain
  • Champonille, Spain
  • Conil, Cadiz, Spain
  • Jakobsberg mine, Filipstad, Nordmark, Värmland, Sweden
  • Långban mines, Bergslagen ore district, Värmland, Sweden
  • Lengenbach quarry, Binntal, Valais, Switzerland
  • Arvigo, Val Calanca, Graubünden, Switzerland
  • Dara-i-Pioz, Alayskiy Range, Garm, Tajikistan
  • Mika pegmatite, Rangkul' Highlands, Eastern Pamirs, Tajikistan
  • Durango, La Plata Co., Colorado, USA
  • Duff quarry, Huntsville, Logan Co., Ohio, USA
  • Dubuque Area, Dubuque Co., Iowa, USA
  • Dragon Cement Quarry - South Pit, Thomaston, Knox Co., Maine, USA
  • Dragon Cement Quarry - North Pit, Thomaston, Knox Co., Maine, USA
  • Dorsey Mansion Area, Point of Rocks Mesa, Socorro Co., New Mexico, USA
  • East Fork, Gila River, Grant Co., New Mexico, USA
  • East Tintic Mine, Juab Co., Utah, USA
  • Eastern Products Quarry, Winfield, Union Co., Pennsylvania, USA
  • Dexter quarry, Lincoln, Providence Co., Rhode Island, USA
  • Commercial Mine, Georgetown, Grant Co., New Mexico, USA
  • Chittenango Falls, Madison Co., New York, USA
  • Christmas Mine, Hayden, Gila Co., Arizona, USA
  • Chute prospect, Casco, Cumberland Co., Maine, USA
  • Dillsburg, York Co., Pennsylvania, USA
  • Coyote Peak, Orick, Humboldt Co., California, USA
  • Diamond Acres locality, Fonda, Montgomery Co., New York, USA
  • Hamilton, Steuben Co., Indiana, USA
  • Diamond Hill/Sneech Pond Copper Mines, Cumberland, Rhode Island, USA
  • Ecton Mine etc, Perkiomenville Area, Montgomery Co., Pennsylvania, USA
  • C-thon Prospect, Stanley District, Graham Co., Arizona, USA
  • Davis pyrite mine, Rowe, Franklin Co., Massachusetts, USA
  • Day Hill locality, Cornish, York Co., Maine, USA
  • De Lamar, Owyhee Co., Idaho, USA
  • Dead Indian Hill, Park Co., Wyoming, USA
  • Debolt Quarry, Richmond, Wayne Co., Indiana, USA
  • Delta Carbonate quarry, York Co., Pennsylvania, USA
  • Denton mine, Harris Creek District, Hardin Co., Illinois, USA
  • Devil's Backbone, North Fork John Day River, Grant Co., Oregon, USA
  • Devil's Corral, near Black Rock Desert, Humboldt Co., Nevada, USA
  • Crestmore Quarry, Crestmore, Riverside Co., California, USA
  • Cimmaron & Bradley Lodes, Smuggler Vein, Smuggler Union Consolidated mine, Marshall Basin, Telluride District, San Miguel Co., Colorado, USA
  • Clay Center, Ottawa Co., Ohio, USA
  • Clearspring/Erie/Pinhook/Zelma etc, Lawrence Co., Indiana, USA
  • Coral Hollow, 11miles ESE of Livermore, Alameda Co., California, USA
  • Corydon Stone Co. Quarry, Corydon, Harrison Co., Indiana, USA
  • Courtland-Gleeson District, Cochise Co., Arizona, USA
  • Colby Farm Lime-Marble quarry, Phippsburg, Sagadahoc Co., Maine, USA
  • Goshen Hole, Platte Co., Wyoming, USA
  • Eastman Hill Tin prospects, Jackson, Carroll Co., New Hampshire, USA
  • General Area, Picher/Commerce/Quapaw/Miami/Peoria, Ottowa Co., Oklahoma, USA
  • Genoa, Ottawa Co., Ohio, USA
  • Getchell Mine, Golconda, Humbolt Co., Nevada, USA
  • Glendon, Moore Co., North Carolina, USA
  • Gold Hill District, Jackson Co., Oregon, USA
  • Gold Hill mine, Tooele Co., Utah, USA
  • Gold Quarry mine, Carlin Trend, Eureka Co., Nevada, USA
  • Golden Horn Batholith, Washington Pass, Okanogen Co., Washington, USA
  • Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA
  • Copper Mountain Area, Sulzer/Prince of Wales Island, Alaska, USA
  • Clegg Mine, Bennett, Chatam Co., North Carolina, USA
  • Clip mine, Yuma, Yuma Co., Arizona, USA
  • Cloverdale Russian River Area, Mendocino Co., California, USA
  • Cochetopa Hills Area, Saguache Co., Colorado, USA
  • Coeur d'Alene, Mullan Canyon Creek Area, Idaho, USA
  • Crystal Pass, Ray, Pinal Co., Arizona, USA
  • Columbus, Cherokee Co., Kansas, USA
  • Eight Mile Park, Eight Mile Park pegmatite district, Fremont Co., Colorado, USA
  • Comstock Lode, Virginia City, Storey Co., Nevada, USA
  • Conklin quarry, Lincoln, Providence Co., Rhode Island, USA
  • Cooks Peak, Luna Co., New Mexico, USA
  • Copper Falls mine, near Eagle Harbor, Keweenaw Co., Michigan, USA
  • Copper Harbor, Lake Manganese, Keeweenaw Co., Michigan, USA
  • Copper Harbour, near Lake Manganese, Keweenaw Co., Michigan, USA
  • Goldie carbonatite, Fremont Co., Colorado, USA
  • Sacremento Mines, Mercur, Tooele Co., Utah, USA
  • Unnamed Lime-Marble quarry #2, Gorham, Cumberland Co., Maine, USA
  • Unnamed Scheelite prospect, Newfield, York Co., Maine, USA
  • Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA
  • Val Verde (tunnel), California, USA
  • Valley Quarry, Shippensburg, Cumberland Co., Pennsylvania, USA
  • Van Stone Mine Area, Stevens Co., Washington, USA
  • Stockbridge Valley Brown Iron Ore District, Berkshire Co., Massachusetts, USA
  • Vermiculite Prospects, Big Sandy Creek, Hill Co., Montana, USA
  • Treasure Mountain Diamond mine, Little Falls, Herkimer Co., New York, USA
  • Viburnum No 27 mine, Iron Co., Missouri, USA
  • Victory Mine, Cave-in-Rock, Hardin Co., Illinois, USA
  • Wah Wah Mountain range, Utah, USA
  • Waisanen mine, Greenwood, Oxford Co., Maine, USA
  • Walker Valley, Skagit Co., Washington, USA
  • Unnamed Lime-Marble quarry #1, Gorham, Cumberland Co., Maine, USA
  • Twin Buttes, Pima Co., Arizona, USA
  • San Manuel mine, Pinal Co., Arizona, USA
  • San Pedro Mine, Hiriart Hill, San Diego Co., California, USA
  • Schwartzwalder Mine, Golden Area, Jefferson Co., Colorado, USA
  • Scrub Oaks Mine, Dover, Morris Co., New Jersey, USA
  • Searles Lake, San Bernardino Co., California, USA
  • Sebago Lake Village Lime-Marble quarries, Standish, Cumberland Co., Maine, USA
  • Shaft #10, Quabbin Aquaduct, Hardwick, Worcester Co., Massachusetts, USA
  • Showalter Quarry/Blueball Stone Co., East Earle Township/Lancaster, Lancaster Co., Pennsylvania, USA
  • Shullsburg, Lafayette Co., Washington, USA
  • Royal Gorge Area, Fremont Co., Colorado, USA
  • Verplanck, Westchester Co., New York, USA
  • Trotter mine, Franklin Furnace, Sussex Co., New Jersey, USA
  • Tungsten Mine, Trumbull, Fairfield Co., Connecticut, USA
  • Tuscarora mine, near Randolph, Crawford Mts, Rich Co., Utah, USA
  • Walker vein, Caldwell Stone Company Quarry, Danville, Boyle Co., Kentucky, USA
  • Wallace Stone Plant, Bayport, Huron Co., Michigan, USA
  • Warren Farm, Alexander Co., North Carolina, USA
  • Talcville Quarries, St.Lawrence Co., New York, USA
  • Tri-State District, Missouri, USA
  • Telluride District, San Miguel Co., Colorado, USA
  • Thomaston Dam Railroad Cut, Thomaston, Litchfield Co., Connecticut, USA
  • Thomaston dam, Thomaston, Litchfield Co., Connecticut, USA
  • Thomasville, Pennsylvania, USA
  • Tilcon Capaldi quarry, Acushnet, Bristol Co., Massachusetts, USA
  • Tilly Foster Mine, Brewster, Putnam Co., New York, USA
  • Tintic Standard mine, Dividend, Utah Co., Utah, USA
  • Topaz cove, Thomas Range, Juab Co., Utah, USA
  • Trap rock Quarry, Chesire, New Haven Co., Connecticut, USA
  • Treadwell Mine, Douglas Island opposite Junea City, SE Juneau Area, Alaska, USA
  • Treasure Hawk Mine, Ophir District, Tooele Co., Utah, USA
  • Stoney Point, Sharpes Township, Alexander Co., North Carolina, USA
  • Sweetwater Mine, Ellington, Reynolds Co., Missouri, USA
  • Sweet Home Mine, Alma District, Park Co., Colorado, USA
  • Warren Nickel prospect, Warren, Knox Co., Maine, USA
  • Warren, Carbon Co., Montana, USA
  • Warwick, Orange Co., New York, USA
  • Rin Mountain, Wausau, Marathon Co., Wisconsin, USA
  • Vanadium King Mine, Camp Signal, San Bernardino Co., California, USA
  • Terry Borate Mine, Inyo Co., California, USA
  • Wentworth Farm locality, Parsonsfield, York Co., Maine, USA
  • Sullivan Granite quarry, Bradford, Westerly, Washington Co., Rhode Island, USA
  • Summit Mine, Broadwater Co., Montana, USA
  • Sunlight copper district, Park Co., Wyoming, USA
  • Sunnyside mine, Silverton Mining District, Howardsville, San Juan Co., Colorado, USA
  • Sunshine mine, Kellogg, Shoshone Co., Idaho, USA
  • Surl, Person Co., North Carolina, USA
  • Susanville, Grant Co., Oregon, USA
  • Tamminen mine, Greenwood, Oxford Co., Maine, USA
  • Benitoite/Dallas/Victor/New Idria Mines, New Idria Mining District, San Benito & Fresno Counties, California, USA
  • Calumet, Houghton Co., Michigan, USA
  • Camp Bird/Dunmore/Monarch Mtn/Portland Mines et., Ouray Area, Ouray Co., Colorado, USA
  • Camp Hinds locality, Raymond, Cumberland Co., Maine, USA
  • Camp Verde, Yavapai Co., Arizona, USA
  • Campbell shaft, Bisbee, Cochise Co., Arizona, USA
  • Benson Mines, Newton Falls/Star Lake, St.Lawrence Co., New York, USA
  • Canoe Creek, Blair Co., Pennsylvania, USA
  • Bryant Pond Granite quarry, Woodstock, Oxford Co., Maine, USA
  • Casey Co., Kentucky, USA
  • Catawba Valley, Virginia, USA
  • Catnip Hill Quarry, Jessamine Co., Kentucky, USA
  • Cave-in-Rock, Hardin Co., Illinois, USA
  • Caverns of Sonora, Edwards Plateau, Sutton Co., Texas, USA
  • Cavetown Quarry, Cavetown, Washington Co., Maryland, USA
  • Calumet & Hecla Mine, Calumet, Houghton Co., Michigan, USA
  • Callahan mine, Brooksville, Hancock Co., Maine, USA
  • Bennett Quarry, Buckfield Township, Oxford Co., Maine, USA
  • Balmat, St. Lawrence Co., New York, USA
  • American Eagle Mine, Elk Mts. Area, Gunnison Co., Colorado, USA
  • Bershire Talc Company mines, Hinsdale, Berkshire Co., Massachusetts, USA
  • 21st Street, Colorado Springs, El Paso Co., Colorado, USA
  • 700' level, Sta.167, Queens Tunnel of NYC Water Tunnel #3, Woodside, Queens, New York City, New York, USA
  • 79 Mine, Banner District, Gila Co., Arizona, USA
  • ACCO Stone Quarry, Dublin, Pulaski Co., Virginia, USA
  • ACCO Stone Quarry, Montgomery Co., Virginia, USA
  • Ace of Diamonds locality, Fonda, Montgomery Co., New York, USA
  • Carson Hill/New Melones Lake, Calaveras Co., California, USA
  • Burnt Cabin Creek, Spray, Wheeler Co., Oregon, USA
  • Butte General Area, Montana, USA
  • Caanan, Litchfield Co., Connecticut, USA
  • Cayuga & Seneca Lakes, Seneca Co., New York, USA
  • Cedar Hill Quarry, Wakefield, Lancaster Co., Pennsylvania, USA
  • Centennial Mine, Calumet, Houghton Co., Michigan, USA
  • Buckwheat mine dump, Franklin, Sussex Co., New Jersey, USA
  • Bound Brook Quarry, Bridgewater, Somerset Co., New Jersey, USA
  • Branchville Mica mine, Branchville, Fairfield Co., Connecticut, USA
  • Brandywine Quarry, Willimgton, New Castle Co., Delaware, USA
  • Brant Lake Area, Thurman, Warren Co., New York, USA
  • Bridgeport Dolomite Quarry, Bridgeport, Montgomery Co., Pennsylvania, USA
  • Brinton's Quarry etc, Chester, Delaware Co., Pennsylvania, USA
  • Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
  • Brooks Hollow Dam, Bear Mountain State Park, Orange Co., New York, USA
  • Browns Creek Area, Natrop/Mount Antero, Chaffee Co., Colorado, USA
  • Brown-Tipton Mine, Mosheim, Greene Co., Tennessee, USA
  • Brushby Creek Mine, Reynolds Co., Missouri, USA
  • Brushy Creek mine, Reynolds Co., Missouri, USA
  • Berry Ledge locality, Cornish, York Co., Maine, USA
  • Blue Bell Mine, Baker, San Bernardino Co., California, USA
  • Bloomington Crushed Stone Quarry, Monroe Co., Indiana, USA
  • Chalk Mountain Mine, Fallon Area, Churchill Co., Nevada, USA
  • Chantilly Quarry, Arcola, Loudoun Co., Virginia, USA
  • Hamburg Mine, Trigo Mts., Yuma Co., Arizona, USA
  • Canaan Lime Quarry, Falls Village, Litchfield Co., Connecticut, USA
  • Bradley Iron mine, Stony Point, Rockland Co., New York, USA
  • Chicago Mine, Iron River, Iron Co., Michigan, USA
  • Betts Manganese Mine, Plainfield, Hampshire Co., Massachusetts, USA
  • Betty O'Neal, Nevada, USA
  • Big Tree Creek, Yacolt, Clark Co., Washington, USA
  • Bisbee, Cochise Co., Arizona, USA
  • Black Hawk district, Grant Co., New Mexico, USA
  • Black Hawk mine, Black Hawk district, Grant Co., New Mexico, USA
  • Black Rock mine, Yuma Co., Arizona, USA
  • Blanchard Mine, Bingham, Socorro Co., New Mexico, USA
  • Boron Borate Mine, Boron/Kramer District, Kern Co., California, USA
  • Goodall/Webster, Sanford, York Co., Maine, USA
  • Eldorado Mine, Indio, Riverside Co., California, USA
  • Elk Creek, Meade Co., South Dakota, USA
  • Elmwood mine, Carthage, Smith Co., Tennessee, USA
  • Erie Canal excavations, Lockport and Rochester, Monroe Co., New York, USA
  • Erie Railroad Cut (Bergen Archways), Jersey City, Hudson Co., New Jersey, USA
  • Esterbrook copper district, Albany Co., Wyoming, USA
  • Estes mine, Baldwin, Cumberland Co., Maine, USA
  • Everett, Bedford Co., Pennsylvania, USA
  • General Area, Jasper & Newton counties, Missouri, USA
  • Faber Zinc Mine, Faber, Albe Marle Co., Virginia, USA
  • Chester Emery mine, Chester, Hampden Co., Massachusetts, USA
  • Fernando Mine/etc, Darwin District, Inyo Co., California, USA
  • Flambeau mine, Ladysmith, Rusk Co., Wisconsin, USA
  • Fogle Quarry, Ottawa, Kansas, USA
  • El Portal Area, Mariposa Co., California, USA
  • Faircloth/Dean/Fairfield/Twin Chimney Mines, Munday's Landing, Mercer Co., Kentucky, USA
  • Gate Vein, Mercer Co., Kentucky, USA
  • Gordonsville zinc Mines, Tennessee, USA
  • Galena/Baxter Springs/Lawton, Cherokee Co., Kansas, USA
  • Goshen, Lane Co., Oregon, USA
  • Grace Mine, Morgantown, Berks Co., Pennsylvania, USA
  • Grace Walker Mine etc, Picher/Miami, Ottawa Co., Oklahoma, USA
  • Grand Deposit mine, White Pine Co., Nevada, USA
  • Grand Reef mine, Laurel Canyon, Aravaipa mining distr., Graham Co., Arizona, USA
  • Granite Mt Quarry #1, Pulaski Co., Arkansas, USA
  • Graphic mine, Magdalena District, Socorro Co., New Mexico, USA
  • Great Notch Quarry, Little Falls, Passaic Co., New Jersey, USA
  • Green Million Vein, Shaker Creek, Mercer Co., Kentucky, USA
  • Grey Horse Mine, Kay Spring Canyon, Arizona, USA
  • Goose Creek Quarry, Loudoun Co., Virginia, USA
  • Foote Spodumene Mine, Kings Mountain, Cleveland Co., North Carolina, USA
  • Franciscan Formation, Panoche Valley, California, USA
  • Franconia Iron mine, Sugar Hill, Grafton Co., New Hampshire, USA
  • B.B.#7 mine, Norway, Oxford Co., Maine, USA
  • Baggs, Carbon Co., Wyoming, USA
  • Bald Knob, Galax, Alleghany Co., North Carolina, USA
  • Alum Cave Bluff, Great Smoky Mts, Tennessee, USA
  • Balmat-Edwards District, Governor, St.Lawrence Co., New York, USA
  • Aggregate Industries quarry, Ashland, Middlesex Co., Massachusetts, USA
  • Basin mine, Phippsburg, Sagadahoc Co., Maine, USA
  • Basin Vesuvianite locality, Phippsburg, Sagadahoc Co., Maine, USA
  • Bayer-Mingolla Quarry, Ashland, Norfolk Co., Massachusetts, USA
  • Beacon Pole Hill/Iron Mine Hill/Diamond Hill etc, Cumberland Area, Providence Co., Rhode Island, USA
  • Bear Creek Quarry, Drain, Douglas Co., Oregon, USA
  • Bear Lodge mining district, Crook Co., Wyoming, USA
  • Beaver Valley Quarry, Shine, Jefferson Co., Washington, USA
  • Beech Creek Quarry, Mount Vernon, Grant Co., Oregon, USA
  • Asbestos Peak, Globe, Gila Co., Arizona, USA
  • Arlington Quarry etc, Leesburg, Loudoun Co., Virginia, USA
  • Frankfort, Franklin Co., Kentucky, USA
  • Franklin Mine, Franklin, Houghton Co., Michigan, USA
  • French Creek Mines, Knauertown, Chester Co., Pennsylvania, USA
  • Frontier Quarry, Lockport, Niagara Co., New York, USA
  • Gale Canyon/Golden/Drew Hill, Golden, Jefferson Co., Colorado, USA
  • Galena General Area, Jo Davies Co., Illinois, USA
  • Evergreen mine, near Apex, Gilpin Co., Colorado, USA
  • Barringer Hill, Blufton, Llano Co., Texas, USA
  • Chino ore body, Central Mining District, Grant Co., Nevada, USA
  • Amethyst lode, Creede, Mineral Co., Colorado, USA
  • Amity, Orange Co., New York, USA
  • Andover Iron Mines, Andover, Morris Co., New York, USA
  • Apache/Bella/Grand Mine etc, Lake Valley District, Sierra Co., New Mexico, USA
  • Argentine Tunnel, Ouray, Ouray Co., Colorado, USA
  • Benchmark Quarry, St. Johnsville, Montgomery Co., New York, USA
  • Ray mine, Pina Co., Arizona, USA
  • Papago mine, Yuma Co., Arizona, USA
  • Park City, Summit Co., Utah, USA
  • McCauliff Quarry/Rollston Hill, Fitchburg, Worchester Co., Massachusetts, USA
  • Parsonsfield Vesuvianite locality, Parsonsfield, York Co., Maine, USA
  • Paul Frank Quarry, North Vernon, Indiana, USA
  • Pea Ridge mine, Sullivan Co., Missouri, USA
  • Pease Mt. locality, Cornish, York Co., Maine, USA
  • Perry Trapprock locality, Perry, Washington Co., Maine, USA
  • Pfitzer Quarry, Adams, Berkshire Co., Massachusetts, USA
  • Phoenix mine, near Eagle Harbor, Keweenaw Co., Michigan, USA
  • Pikes Peak, Teller Co., Colorado, USA
  • Pine Island, Orange Co., New York, USA
  • Pints Quarry/Waterloo lead and zinc Mines, Dubuque, DubuqueCo., Iowa, USA
  • Piper Hill prospect, Newfield, York Co., Maine, USA
  • Paoli Area, Garvin Co., Oklahoma, USA
  • Pack Rat Mine, Carbon Co., Montana, USA
  • Reading Talc Mine, Reading, Windsor Co., Vermont, USA
  • Red Cloud Mine, Trego Mts., La Paz Co., Arizona, USA
  • Red Mountain Formation, Birmingham, Jefferson Co., Alabama, USA
  • "Redstone Green Granite"" quarry, Conway, Carroll Co., New Hampshire, USA"
  • "Redstone Red Granite"" quarry, Conway, Carroll Co., New Hampshire, USA"
  • Purple Passion Mine, Wickenberg, Yavapai Co., Arizona, USA
  • Parker shaft, Franklin, Sussex Co., New Jersey, USA
  • Oskaloosa, Mahaska Co., Iowa, USA
  • Owingsville, Bath Co., Kentucky, USA
  • Owl Canyon, Larimer Co., Colorado, USA
  • Oxbow, St. Lawrence Co., New York, USA
  • Oxford Stone Company, Bridgeville, Cumberland Co., New Jersey, USA
  • Ozark-Mahoning Mine, Cave-in-rock & Rosiclare, Hardin Co., Illinois, USA
  • Pacific mine, Yuma Co., Arizona, USA
  • Park City & Alta, Clayton Peak, Utah, USA
  • Jensen Quarry, Riverside Co., California, USA
  • Iron Hill, Cebolla Creek area, Powderhorn, Gunnison Co., Colorado, USA
  • Juanita Mine, Magdalena district, Socorro Co., New Mexico, USA
  • Jumbo Copper mine, Prince of Wales Island, Alaska, USA
  • Kelley Mine, Magdalena District, Socorro Co., New Mexico, USA
  • Keokuk, Lee Co., Iowa, USA
  • Keweenawan copper deposit, Lake Superior, Michigan, USA
  • Keystone Quarry, Cornog, Chester Co., Pennsylvania, USA
  • King Mountain Area, Crowders, Gaston Co., North Carolina, USA
  • McLear Quarry, DeKalk Township, St.Lawrence Co., New York, USA
  • Jamestown, Newport Co., Rhode Island, USA
  • Hampden quarry, Westfield, Hampden Co., Massachusetts, USA
  • Hanover Quarry, Hanover, Adams Co., Pennsylvania, USA
  • Hansen Creek, King Co., Washington, USA
  • Harding Mine, Dixon, Taos Co., New Mexico, USA
  • Harriman prospect, Union, Knox Co., Maine, USA
  • Josephine Horizon, Metaline District, Washington, USA
  • Josephine Creek, Galice District, Josephine Co., Oregon, USA
  • Iron Mountain Mine, Iron Mountain, Missouri, USA
  • Iron Springs District, Cedar City Area, Utah, USA
  • Irving Materials quarry, Anderson, Madison Co., Indiana, USA
  • Italian Mt. Area, Aspen, Gunnison Co., Colorado, USA
  • Jackson Canyon, Humbolt Range, Pershing Co., Nevada, USA
  • Jackson/Superior Mines etc, Negaunee, Marquette Co., Michigan, USA
  • Jacksonwald, Berks Co., Pennsylvania, USA
  • James Creek, Jamestown, Boulder Co., Colorado, USA
  • Jamestown mine, Tuolumne Co., California, USA
  • Hyatt Mine, Talcville, St. Lawrence Co., New York, USA
  • Jarbridge, Elko Co., Nevada, USA
  • Hunting Hill quarry, Rockville, Montgomery Co., Maryland, USA
  • Johnsburg Area, Warren Co., New York, USA
  • Joplin, Jasper Co., Missouri, USA
  • Harris Quarry, Lincoln, Providence Co., Rhode Island, USA
  • North Table Mountain, Golden Area, Jefferson Co., Colorado, USA
  • Old Dominium, Gila Co., Arizona, USA
  • Old Guard Mine, Tombstone, Cochise Co., Arizona, USA
  • Old Strontian Mine, Schoharie, Schoharie Co., New York, USA
  • Old Yuma Mine, Tuscon Area, Pima Co., Arizona, USA
  • Olmstedville, Essex Co., New York, USA
  • Opp Mine, Jackson, Jackson Co., Oregon, USA
  • Orderville, Kane Co., Utah, USA
  • McCormick (Ide Ledge) quarry, East Providence, Providence Co., Rhode Island, USA
  • NJ Zinc Co./Bertha Mine, Austinville, Wythet Co., Virginia, USA
  • McManus Gulch, Clear Creek Co., Colorado, USA
  • Meckley's Quarry, Mandata, Northumberland Co., Pennsylvania, USA
  • Medicine Bow Mts., Gold Hill, Wyoming, USA
  • Memphis Mine, Organ district, Dona Ana Co., New Mexico, USA
  • Mendevil mine, Yuma Co., Arizona, USA
  • Oak Grove Fork, Clackamas River, Clackamas Co., Oregon, USA
  • O&G quarry, Southbury, New Haven Co., Connecticut, USA
  • Osborne Soapstone quarry, Blandford, Hampden Co., Massachusetts, USA
  • Myers, Treasure Co., Montana, USA
  • Nakeye Mine, Derry District, Sierra Co., New Mexico, USA
  • near Gordon Gulch, Owyhee Dam Area, Malheur Co., Oregon, USA
  • near Putney, Vermont, USA
  • New Cornelia Mine, Ajo, Pima Co., Arizona, USA
  • New Market Mine, New Market, Tennessee, USA
  • New Water Mountains, Yuma Co., Arizona, USA
  • Newport, Newport Co., Rhode Island, USA
  • Mt Mica mine, Paris, Oxford Co., Maine, USA
  • North Mountain Serpentine locality, Cheshire, Berkshire Co., Massachusetts, USA
  • Mt Belvidere mines, Lowell & Eden Mills, Orleans Co., Vermont, USA
  • North Vernon, Jennings Co., Indiana, USA
  • Northumberland Mine, Toquima Range Area, Nye Co., Nevada, USA
  • Meshberger Stone quarry, Columbus, Bartholomew Co., Indiana, USA
  • Mex-Tex mine, Socorro Co., New Mexico, USA
  • Mid Continent mine, Miami, Ottawa Co., Oklahoma, USA
  • Ore Knob Copper Mine, Ashe, Ashe Co., North Carolina, USA
  • Platteville Area, Iowa Co., Wisconsin, USA
  • Poorhouse Quarry, Embrieville, Chester Co., Pennsylvania, USA
  • Portage Lake Lava area, Keweenaw Co., Michigan, USA
  • Portland/Vindicator/Golden Cycle etc, Cripple Creek, El Paso Co., Colorado, USA
  • Portsmouth, Newport Co., Rhode Island, USA
  • Prospect Park Quarry, Haledon, Passaic Co., New Jersey, USA
  • Provence Mt. locality, Newfield, York Co., Maine, USA
  • Providence, Providence Co., Rhode Island, USA
  • Pitts-Tenney mine, Minot, Androscoggin Co., Maine, USA
  • Putney, Windham Co., Vermont, USA
  • Pipestone Pass Area, Bald Mts. Area, Jefferson Co., Montana, USA
  • Quick Silver Mine etc, Organ Mts. Area, Dona Ana Co., New Mexico, USA
  • Quincy mine, Hancock, Houghton Co., Michigan, USA
  • Questa Mine, Taos Co., New Mexico, USA
  • Millington quarry, Millington, Somerset Co., New Jersey, USA
  • Middletown Area, Middlesex Co., Connecticut, USA
  • Midnight Mine, Pitkin Co., Colorado, USA
  • Mt. Baldy & Gold Mt., Ohio, Utah, USA
  • Osceola/Mohawk/Iroquois/Clark/Delaware Mine etc, Keweenaw Peninsula, Michigan, USA
  • Mineral, Mineral Co., Virginia, USA
  • Minerva #1 Mine, Harris Creek District, Hardin Co., Illinois, USA
  • Mitchell Mt. mine, Newfield, York Co., Maine, USA
  • Modoc Mine, Dona Ana Co., New Mexico, USA
  • Mohawk Mine, Goldfield, Esmeralda Co., Nevada, USA
  • Mohawk mine, San Bernardino Co., California, USA
  • Monroe, Union Co., North Carolina, USA
  • Montclair Quarry, Montclair, Passaic Co., New Jersey, USA
  • Morristown Area, Maricopa Co., Arizona, USA
  • Mount Washington, Bullit Co., Kentucky, USA
  • Radcliff, Hardin Co., Kentucky, USA
  • Liberty Bell and Washington Pass, Okanogan Co., Washington, USA
  • ZCA Mine, Pierrepont, St. Lawrence Co., New York, USA
  • Zinc Hill Mine, Darwin Area, Inyo Co., California, USA
  • Woodbury Area quarries, Cannon Co., Tennessee, USA
  • Wausau Plateau, Rib Mountain, Marathon Co., Wisconsin, USA
  • Spor Mt., Nevada, USA
  • West Creek, Brooklyn Hts, Ohio, USA
  • Silver Plume, Colorado, USA
  • Skookumchuck dam, Bucoda & Tenino, Thurston Co., Washington, USA
  • Smith Granite quarry, Westerly, Washington Co., Rhode Island, USA
  • Smuggler Vein, Smuggler Union Consolidated mine, Marshall Basin, Telluride District, San Miguel Co., Colorado, USA
  • Snake River/Peru, Montezuma, Summit Co., Colorado, USA
  • Sneech Pond Copper mine, Cumberland, Providence Co., Rhode Island, USA
  • Snow/Sackett/Marcia/Old/Melvin/Wright Mines etc, Chester, Hampden Co., Massachusetts, USA
  • Snowbird mine, South Pass-Atlantic City gold district, Fremont Co., Wyoming, USA
  • Yerington, Lyon Co., Nevada, USA
  • Yerington District, Lyon Co., Nevada, USA
  • Redstone Granite quarry, Westerly, Washington Co., Rhode Island, USA
  • Yaquina Head Quarry, Agate Beach, Lincon Co., Oregon, USA
  • Westerly, Washington Co., Rhode Island, USA
  • Wheatfield Iron Mine, Wheatfield/Sinking Spring, Berks Co., Pennsylvania, USA
  • White Caps/Outlaw Mines etc, Manhattan, Nye Co., Nevada, USA
  • White Mt. Batholith Pegmatite District, Carroll Co., New Hampshire, USA
  • White Pine mine, Ontonagan Co., Michigan, USA
  • Wilbur Springs, Colusa Co., California, USA
  • Willard mine, Lovelock, Pershing Co., Nevada, USA
  • Wilson's Quarry, Plainfield, Union Co., New Jersey, USA
  • Winslow Tin mine, Winslow, Kennebec Co., Maine, USA
  • Wolf Creek Pass, Mineral Co., Colorado, USA
  • Wood River District, Hailey, Blaine Co., Idaho, USA
  • Woodward Iron Mines, Vance, Tuscaloosa Co., Alabama, USA
  • Snowbird/Mary Ellen Mine, Atlantic City District, Fremont Co., Wyoming, USA
  • Somerville, Middlesex Co., Massachusetts, USA
  • Silver Hill Mine, Tuescon arera, Pima Co., Arizona, USA
  • Halls Gap, Lincoln Co., Kentucky, USA
  • Ringwood Iron Mine, Ringwood, Passaic Co., New Jersey, USA
  • Road Cut Calcite locality, Mexico, Oxford Co., Maine, USA
  • "Rockland-Thomaston Limestone"" quarries, Rockland, Knox Co., Maine, USA"
  • Rockport, Cape Ann, Essex Co., Massachusetts, USA
  • Rockville, Montgomery Co., Maryland, USA
  • Roncari quarry, East Granby, Hartford Co., Connecticut, USA
  • Rose mine, Grant Co., New Mexico, USA
  • Rosiclaire, Hardin Co., Illinois, USA
  • Ross Hannibal mine, Lawrence Co., South Dakota, USA
  • Rossie lead mines, St. Lawrence Co., New York, USA
  • Silver Hill, Davidson Co., North Carolina, USA
  • Sugar Grove, Pendelton Co., West Virginia, USA
  • Rush, Marion Co., Arkansas, USA
  • Rumford Falls locality, Rumford, Oxford Co., Maine, USA
  • Southwest mine, Bisbee, Cochise Co., Arizona, USA
  • Specialty Minerals quarry, Adams, Berkshire Co., Massachusetts, USA
  • Silver Glance mine, Silent district, Arizona, USA
  • Sprakers, Montgomery Co., New York, USA
  • Spruce Peak deposit, King Co., Washington, USA
  • St. Louis, St. Louis Co., Missouri, USA
  • St.Louis, St.Louis Co., Missouri, 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
  • Stephenson-Bennett mine, Organ District, Dona Ana Co., New Mexico, USA
  • Sterling Hill and Franklin Furnace, Sussex Co., New Jersey, USA
  • Sterling Mine, Antwerp, St.Lawrence Co., New York, USA
  • Stewart Mine, Butte, Silver Bow Co., Montana, USA
  • Stillwater complex, Benbow Area, Stillwater Co., Montana, USA
  • Rutherford Mines, Amelia Court House, Virginia, USA
  • Hartville iron-copper district, Platte Co., Wyoming, USA
  • Hawthorne, Mineral Co., Nevada, USA
  • Kingsbridge, Bronx Co., New York, USA
  • Lutz Quarry, Oshkosh, Wisconsin, USA
  • Lynch quarry, Berkeley, Cumberland, Providence Co., Rhode Island, USA
  • Macy Mine, Hillsboro district, Sierra Co., New Mexico, USA
  • Magdalena district, Socorro Co., New Mexico, USA
  • Magma Mine, Superior, Pinal Co., Arizona, USA
  • Magmont mine, Bixby, Iron Co., Missouri, USA
  • Magmount mine, Bixby, Missouri, USA
  • Magnet Cove, Hot Spring Co., Arkansas, USA
  • Mammoth-St. Anthony mine, Tiger, Pinal Co., Arizona, USA
  • Lubec Lead mine, Lubec, Washington Co., Maine, USA
  • Mandarin mine, Yuma Co., Arizona, USA
  • Lower New Street quarry, Paterson, Passaic Co., New Jersey, USA
  • Humbolt Range, Mill City, Pershing Co., Nevada, USA
  • Howe Hill Nickel mine, Rumford, Oxford Co., Maine, USA
  • Hartville Uplift Copper district, Goshen Co., Wyoming, USA
  • Harvard Quarry, Greenwood Township, Oxford Co., Maine, USA
  • Hastings Farm locality, Fonda, Montgomery Co., New York, USA
  • Haverstraw, Rockland Co., New York, USA
  • Idarado, San Miguel Co., Colorado, USA
  • Helena/American Bar/Blue Spinel Quarries etc, General Area, Lewis & Clark Co., Montana, USA
  • Kirwin copper district, Park Co., Wyoming, USA
  • Hiddenite, Alexander Co., North Carolina, USA
  • Hill Top Mine, Cochise Co., Arizona, USA
  • Hilltop mine, Cochise Co., Arizona, USA
  • Homestake Mine etc, Ambrosia Lake District, McKinley Co., New Mexico, USA
  • Homestake Mine, Creede, MineralCo., Colorado, USA
  • Horseshoe Island Calc-Silicate locality, Winthrop, Kennebec Co., Maine, USA
  • Howard-Montgomery quarry, Howard Co., Maryland, USA
  • Manton Avenue quarry, Providence, Providence Co., Rhode Island, USA
  • Manton, Providence Co., Rhode Island, USA
  • Loudville Lead Mine, Loudville, Hampshire Co., Massachusetts, USA
  • Lane Quarry, Westfield, Hampden Co., Massachusetts, USA
  • Laurel Hill (Snake Hill), Secaucus/Bergen Hill Area, Hudson Co., New Jersey, USA
  • Laytonville Quarry, Laytonville, Mendocino Co., California, USA
  • LCA mine, Bessermer City, Gaston Co., North Carolina, USA
  • Lee Lime quarry, Lee, Berkshire Co., Massachusetts, USA
  • Lucky Peak Dam, Ada Co., Idaho, USA
  • Liberty Copper/Dolly Hyde Copper Mines, Libertytown, Fredrick Co., Maryland, USA
  • Rincon Quarry, Rincon, Dona Ana Co., New Mexico, USA
  • Lime Quarry, Bolton, Worcester Co., Massachusetts, USA
  • Lincoln, Providence Co., Rhode Island, USA
  • Lithonia, DeKalb Co., Georgia, USA
  • Little Mt uranium district, Big Horn Co., Wyoming, USA
  • Lockport Quarry, Lockport, Niagara Co., New York, USA
  • Lone Jack Quarry, Glasgow, Rockbridge Co., Virginia, USA
  • Lane & Sons Traprock quarrys, Westfield, Hampden Co., Massachusetts, USA
  • Lambertville, Mercer Co., New Jersey, USA
  • Manville quarry, Cumberland, Providence Co., Rhode Island, USA
  • Maple Grove, Seneca Co., Ohio, USA
  • Marie Mine, Carbon Co., Montana, USA
  • Marion/Salem/Princeton, Crittendon Co., Kentucky, USA
  • Mariposa mine, Terlingua district, Brewster Co., Texas, USA
  • Martin Marietta Quarry, Hickory, Catawba Co., North Carolina, USA
  • Massachusetts Talc Company mine, Rowe, Franklin Co., Massachusetts, USA
  • Masslite quarry, Plainville, Norfolk Co., Massachusetts, USA
  • Maybee, Monroe Co., Michigan, USA
  • LaFlamme quarry, Minot, Androscoggin Co., Maine, USA
  • La Motte/Missouri Cobalt Mine, Fredrick, Madison Co., Missouri, USA
  • La Junta, Otero Co., Colorado, USA
  • "Knox Lime"" quarry, Union, Knox Co., Maine, USA"
  • Lime Crest Quarry, Sparta, Sussex Co., New Jersey, USA
  • Mamouth Mine, Tiger, Pinal Co., Arizona, USA
  • Logau-las-Lode, Ysbyty Ystwyth, Dyfed, Wales
  • Llanharry Hematite Mine,Llanharry, Mid Glamorgan, Wales
  • Trecastell Mine, Conway, Gwynedd, Wales
  • Machen Quarry, Machen, Mid Glamorgan, Wales
  • Manod Quarry, Blaenau, Festinog, Gwynedd, Wales
  • Minera (mines), Wrexham, Wales
  • Nantiago Mine, Hafren Forest, Powys, Wales
  • Nant-y-Cagel mine (Eagle Brook), Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Penrhiw mine, Ystumtuen, Dyfed, Wales
  • Taffs Well quarry, Cardiff, Wales
  • Ton Mawr Quarry, Pentyrch, Cardiff, South Glamorgan, Wales
  • Parc Mine, Wrexham, Wales
  • Aberllyn mine, Llanrwst, Bettws-y-coed, Gwynedd, Wales
  • Esclusham Mountain, Minera, Wales
  • Llangynog Mine, Llangynog, Powys, Wales
  • Great Ormes Head Mine, Llandudno, Wales
  • Llechwedd Helyg mine, Tir-y-Mynach, Dyfed, Wales
  • Blaengwynlais quarry, Mid Glamorgan, Wales
  • Bryn-gwiog Mine, Halkyn Mt, Clwyd, Wales
  • Drws-y-Coed mine, Llandwrog, Gwynedd, Wales
  • A4119 roadcutting, south of Llantrisant, Mid Glamorgan, Wales
  • Esgair Hir mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Llanelwedd Quarry, Builth Wells, Powys, Wales
  • Henfwlch Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
  • Hendy quarry, LLantrisant, Mid Glamorgan, Wales
  • Hendre quarry, Glyn Ceiriog, Clwyd, Wales
  • Hendre Felen Mine, Ysbyty Ystwyth, Dyfed, Wales
  • Ruashi, Shaba, Zaire
  • Kipushi mine, Lubumbashi, Shaba, Zaire
  • Mindouli, Congo, Zaire
  • Mashamba West mine, Shaba, Zaire


Usos

Los cristales límpidos, como el espato de Islandia, se han empleado en la fabricación de prismas polarizadores (nicol) para microscopios petrográficos, que en la actualidad han sido sustituidos por los menos costosos filtros polarizadores.

Las masas compactas de calcita (calizas y mármoles), se emplean en construcción, bien como materia prima básica para la obtención del cemento, bien como rocas ornamentales. En la industria química se usa para la fabricación de sosa cáustica, anhídrido carbónico y cloruro de calcio; en metalurgia se emplea como fundente y en la industria de los fertilizantes como corrector de suelos. Usos más particulares son los del mármol en escultura y de las calizas litográficas en imprenta.

Las masas terrosas de calcita se emplean como polvo para enlucir y en la industria de gomas y barnices.

La cal expuesta a calentamiento alrededor de 900º C a la presión ordinaria, sufre una descomposición térmica, como sucede también en otros carbonatos a temperaturas distintas, con pérdida del anhídrido carbónico y formación de óxido de calcio, la así llamada cal viva. Esta última tratada con agua y con la debida cautela, puesto que la reacción desarrolla notables cantidades de calor que producen peligrosas quemaduras, se transforma en hidróxido de calcio o cal apagada, utilizada como "ligazón" para la fabricación del mortero. Los romanos llamaban calx a este óxido de calcio obtenido por la calcinación de la caliza.

En muchos pueblos todavía existen a las afueras los conocidos caleros, unos hornos en los cuales se realizaba este proceso con el fin de obtener la cal viva.

Bibliografía y más información

Zeitschrift für Kristallographie, vol. 156, p.233, (1981)
American Mineralogist, vol. 75, p.807, (1990)

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