Brochantita
Descripción
Fotografías
En la galería de fotografías dispones de 2 fotografías de Brochantita
Formación y ambiente
En climas áridos en depósitos de sulfato de cobre en proceso de oxidación rápida bajo condiciones de baja acidez
Accesorio, gossans, secundario.
Propiedades fisicas
Hábito: Pequeños cristales de hábito prismático y finamente estriados. Lo mas frecuente es que el mineral aparezca formando agregados cristalinos aciculares o fibrosos de un bello color verdoso.
Lustre: Vítreo - perlado
Transparencia: Transparente, Translúcido
Color: Verde, verde esmeralda o negro.
Color en sección fina: Incolora
Raya: Verde pálido
Dureza (Mohs): 3,5-4
Tenacidad: Frágil
Exfoliación::
- Primera exfoliación: Perfecta en [100]
- Segunda exfoliación: Perfecta
- Tercera exfoliación: Perfecta
Fractura: Concoidal
Densidad: 4-4,1 g/cm3 (medida) | 3,98 g/cm3 (calculada)
Cristalografía
Sistema cristalino:Monoclínico
Clase (H-M): 1m (2/m) - Prismática
Grupo espacial: P2(1)/a
Parámetros de la celda: a=13,08Å b=9,85Å c=6,02Å
Estructura del cristal: β=103,37º
Volumen de unidad de celda: V 754,6Å
Z: 4
Macla: Simétricas y pseudoortorrómbicas
Difracción de Rayos X:| D(hkl) | Intensidad |
|---|---|
| 2,521 | 100 |
| 3,9 | 85 |
| 2,678 | 50 |
Propiedades ópticas
Tipo: Biaxial (-)
Valores RI: nα= 1,728; nβ= 1,771; nγ= 1,8
2V: medida: 72º
Máxima birrefringencia: δ = 0,072
Dispersión: Moderada, r<v
Propiedades químicas
Fórmula: Cu4(SO4)(OH)6
Elementos químicos: Cu, S, O, H
Composición química: H: 1,34%, O: 35,37%, Cu: 56,20%, S: 7,09%,
Tests químicos
Fusibilidad: 2; Mineral tipo: Natrolita; Punto de fusión: 800ºC; Funde con mechero de gas
Reacción a los ácidos: Se disuelve en todos los ácidos
Formación de sublimados: Fácilmente fusible
Otras propiedades
Magnetismo: No magnético
Relaciones con otros minerales
Minerales acompañantes
| Imagen | Mineral | Fórmula | Sistema | Dureza | Color | Raya | Brillo |
|---|---|---|---|---|---|---|---|
 | Antlerita | Cu3(SO4)(OH)4 | Ortorrómbico | 3-4 | Verde pálido | Vítreo | |
 | Azurita | Cu3(CO3)2(OH)2 | Monoclínico | 3,5-4 | Azul claro, azul oscuro, azul. | Azul clara | Vítreo |
 | Crisocola | Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O | Monoclínico | 2.5-3.5 | Verde a azul, a veces pardo | Verde clara | Vítreo plomizo |
 | Cuprita | Cu2O | Cúbico | 3,5-4 | Rojo, rojo púrpura, rojo pardusco o negro | Roja pardusca | Adamantino |
| Cyanotrichita | Cu4Al2(SO4)(OH)12·2H2O | Ortorrómbico | 2 | Azul pálido | Sedoso | |
 | Langita | Cu4(SO4)(OH)6·2H2O | Ortorrómbico | 2,5-3 | Azul, azul verdoso. | Azul verdosa. | Vítreo |
 | Limonita | FeO(OH)·nH2O | Amorfo | 5-5,5 | Pardo | Pardo amarillenta | Adamantino - sedoso |
 | Linarita | PbCu(SO4)(OH)2 | Monoclínico | 2,5 | Azul oscuro intenso. | Azul clara | Vítreo |
 | Malaquita | Cu2(CO3)(OH)2 | Monoclínico | 3,5-4 | Verde | Verde clara | Vítreo, sedoso |
| Posnjakita | Cu4(SO4)(OH)6·H2O | Monoclínico | 2,5-3 | Vítreo |
Yacimientos y localidades de interés
Localidades
- Bank mines, Sverdlovsk, Ural Mts., Russia - Localidad tipo.
- Mednorudyanskoye Cu deposit, Nizhniy Tagil, Urals, Russia, (FSU) - Localidad tipo.
- Burra Burra mine, Burra, South Australia, Australia
- Claim 84, Anticline prospect, Ashburton Downs, Western Australia, Australia
- Colebrook Hill, Rosebery, Tasmania, Australia
- Great Australia mine, Cloncurry, Mt Isa/Cloncurry region, Queensland, Australia
- Mt Cobalt, Queensland, Australia
- Mt Isa Mine, Mt Isa, Queensland, Australia
- Proprietary mine, Broken Hill, New South Wales, Australia
- Breitenau am Hochlantsch Mine, Styria, Austria
- Neufinkenstein-Grabanz, Mallestiger Mittagskogel, Finkenstein, Villach, Kärnten, Austria
- Rauris valley, Salzburg, Austria
- Schellgaden, Salzburg, Austria
- Schwaz-Brixlegg, Tyrol, Austria
- Walchen slags, Öblarn, Liezen, Steiermark, Austria
- Siglo Veinte (XX) mine, Llallagua, Bustillo, Potosí Dept, Bolivia
- Highland Bell mine, Beaverdell, British Columbia, Canada
- Mt St.-Hilaire, Rouville Co., Québec, Canada
- Poudrette quarry, Mt St.-Hilaire, Rouville Co., Québec, Canada
- Chuquicamata, Antofagasta, Chile
- Mina Viegar, Potrerillos, Atacama, Chile
- Alexander Gallery, Vrancice, Príbram, Stredocesky, Czech Republic
- Borovec, Zdar nad Sazavou, Maehren, Czech Republic
- Horni Slavkov, Karlovy Vary, Czech Republic
- Hütte, Príbram, Stredocesky, Czech Republic
- Krupka, Krusne Hory, Vychodocesky, Czech Republic
- Ball Eye quarry, Bosnal, Derbyshire, England
- Bedford United mine, Tavistock, Devon, England
- Brandy Gill Lead mine, Caldbeck Fells, Cumbria, England
- Brownley Hill Pb-Zn mine, Nenthead, Cumbria, England
- Buckbarrow Beck Veins, Waberthwaite, Cumbria, England
- Carn Brea, Camborne, Illogan, Cornwall, England
- Clevedon Beach, Somerset, England
- Dale Head Mine, Newlands Valley, Cumbria, England
- Doc Mine, Stormy Point, Alderley Edge, Cheshire, England
- Drakewalls mine, Calstock, Cornwall, England
- Driggith Mine, Caldbeck Fells, Cumbria, England
- Ecton Hill,Clayton Adi, Ecton Hill, Staffordshire, England
- Engine Vein, Alderley Edge, Shropshire, England
- Force Crag Mine, Keswick, Cumbria, England
- Fowey Consols mine, Tywardreath (St. Blazey), Cornwall, England
- Geevor mine, Trewellard, St. Just, Cornwall, England
- Gerrans Bay, Cornwall, England
- Gunheath China Clay Pit, Stenalees, St.Austell, Cornwall, England
- Gunheath pit, Bugle, Hensbarrow Moor, Cornwall, England
- Halamanning Mine, St.Hilary, Cornwall, England
- Hay Gill Copper mine, Caldbeck Fells, Cumbria, England
- Hazard Section, Botallack mine, Botallack, St. Just, Cornwall, England
- Kinniside Mine, Cleaton Moor, Cumbria, England
- Ladywell mine, Shelve, Shropshire, England
- Levant mine, Pendeen, St. Just, Cornwall, England
- Low Pike north slopes, Caldbeck Fells, Cumbria, England
- Low Pike Vein, Caldbeck Fells, Cumbria, England
- Mexico mine, Caldbeck Fells, Cumbria, England
- Myers Head Mine, Hartsop, Cumbria, England
- New Cliffe Hill quarry, Markfield, Leicestershire, England
- New East Wheal Russel, near Tavistock, Devon, England
- Old Potts Gill mine, Caldbeck Fells, Cumbria, England
- Old Sandbeds Mine, Caldbeck Fells, Cumbria, England
- Paddy End Mine, Coniston, Cumbria, England
- Penberthy Croft mine, St. Hilary, Cornwall, England
- Red Gill mine, Caldbeck Fells, Cumbria, England
- Roughton Gill Mine, Caldbeck Fells, Cumbria, England
- Sandbeds mine, Caldbeck Fells, Cumbria, England
- Sharptor mine, Linkinhorne, Cornwall, England
- Silver Gill, Caldbeck Fells, Cumbria, England
- Snelston, Derbyshire, England
- Thief Gills, Roughtongill, Cumbria, England
- Ting-Tang mine, Gwennap, Cornwall, England
- Tynebottom mine, Garrigill, Cumbria, England
- United Consols, St. Day, Cornwall, England
- United Downs mine, Gwennap, Cornwall, England
- Waterbank mine, Ecton, Staffordshire, England
- Wheal Bassett, Redruth, Illogan, Cornwall, England
- Wheal Edward, St. Just, Cornwall, England
- Wheal Friendship, Mary Tavy, Devon, England
- Wheal Gorland, Gwennap, Cornwall, England
- Wheal Owles, St. Just, Cornwall, England
- Wheal Phoenix, Linkinhorne, Cornwall, England
- Wood mine, Alderley Edge, Cheshire, England
- Bousiéyas, Alpes-Maritimes, France
- Cap Garonne, Le Pradet, Var, France
- Chessy-les-Mines, Rhône, Rhône-Alpes, France
- Falgayrolles, Aveyron, Midi-Pyrénées, France
- La Pacaudière, Le Crozet, Loire, Rhône-Alpes, France
- Monsols, Rhône, Rhône-Alpes, France
- Val Croze, Gard, France
- Anton mine, Heubachtal, Wittichen, Baden-Wuerttemberg, Germany
- Christophstal, Freudenstadt, Baden-Wuerttemberg, Germany
- Clara mine, Oberwolfach, Baden-Wuerttemberg, Germany
- Daniel mine, Schneeberg, Sachsen, Germany
- Ferdinand mine, Alpirsbach, Baden-Wuerttemberg, Germany
- Floßberg mine, Bad Lauterberg, Harz Mts, Sachsen, Germany
- Glückauf mine, Bad Grund, Harz Mts, Sachsen, Germany
- Glücksrad mine, Clausthal-Zellerfeld, Harz Mts, Sachsen, Germany
- Herzog-Julius-Hütte, Goslar, Harz Mts, Sachsen, Germany
- Hilfe Gottes mine, Wiemannsbucht, Bad Grund, Harz Mts, Sachsen, Germany
- Johann mine, Wittichen, Baden-Wuerttemberg, Germany
- Kafersteige mine, Pforzheim, Baden-Wuerttemberg, Germany
- Lautenthaler Hütte, Langelsheim, Harz Mts, Sachsen, Germany
- Ochsenhütte, Granestausee, Goslar, Harz Mts, Sachsen, Germany
- Rammelsberg mine, Goslar, Harz Mts, Sachsen, Germany
- Roßgrabeneck, Kinzigtal, Baden-Wuerttemberg, Germany
- Silberbrünnle mine, Kinzigtal, Baden-Wuerttemberg, Germany
- St. Andreasberg, Hartz Mts, Niedersachsen, Germany
- Wenzel mine, Oberwolfach, Baden-Wuerttemberg, Germany
- Winterberg quarry, Bad Grund, Harz Mts, Sachsen, Germany
- Wolkenhügel mine, Bad Lauterberg, Harz Mts, Sachsen, Germany
- Hilarion adit, Agios Konstandinos, Laurion, Attica, Greece
- Kamaréza Central mine, Laurion, Attica, Greece
- Ilimaussaq, West Greenland
- Allihies mine, Castletown, Bearhaven, Co. Cork, Ireland
- Bunmahon, Co. Waterford, Ireland
- Glandore mines, Co. Cork, Ireland
- Muckross mine, Co. Kerry, Ireland
- Baccu Locci mine, Villaputzu, Sardinia, Italy
- Is Murvonis Mine, Domusnovas, Iglesias district, Sardinia, Italy
- Sa Duchessa mine, Oridda, Sardinia, Italy
- Val Graveglia, Liguria, Italy
- Ahumada & Erupcion mines, Sierra de Los Lamentos, Chihuahua, Mexico
- Concepcion de Oro, Zacatecas, Mexico
- Mina San Carlos, Aranzazu, Concepcion del Oro, Zacatecas, Mexico
- Bou Becker, Touissit, Oujda, Morocco
- Tsumeb mine, Tsumeb, Otavi, Namibia
- Tsumeb, Namibia
- Maharahara mine, North Island, New Zealand
- Kongsberg, Buskerud, Norway
- Dal'negorsk, Primorskiy Kray, Russia
- Auchencat Burn, Nr. Moffat, Dumfries and Galloway, Scotland
- Leadhills-Wanlockhead district, Strathclyde/Dumfries and Galloway, Scotland
- Meadowfoot Smelter, Wanlockhead, Dumfries & Galloway, Scotland
- Needle's Eye Mine, Dumfries & Galloway, Scotland
- Scar Vein, Leadhills, Strathclyde, Scotland
- Waygate Shaft, Straitstep Vein, Wanlockhead, Dumfries and Galloway, Scotland
- Stavoren, near Marble Hall, Transvaal, South Africa
- Sierra de Prades, Tarragona, Spain
- Cavradi-Schlucht, Graubünden, Switzerland
- Mürtschenalp, Glarus, Switzerland
- 79 Mine, Banner District, Gila Co., Arizona, USA
- Alder Creek district, Custer Co., Idaho, USA
- Apex mine, St. George district, Washington Co., Utah, USA
- Belmont Mine, Tonopah, Maricopa Co., Arizona, USA
- Bisbee, Cochise Co., Arizona, USA
- Blanchard Mine, Bingham, Socorro Co., New Mexico, USA
- Blue Bell Mine, Baker, San Bernardino Co., California, USA
- Bound Brook Quarry, Bridgewater, Somerset Co., New Jersey, USA
- Bunker Hill mine, Kellogg, Shoshone Co., Idaho, USA
- Butte General Area, Montana, USA
- Callahan mine, Brooksville, Hancock Co., Maine, USA
- Centennial Eureka mine, Tintic distr., Juab Co, Utah, USA
- Cerro Gordo Mine, Cerro Gordo, Inyo Co., California, USA
- Christmas Mine, Hayden, Gila Co., Arizona, USA
- Clifton-Morenci district, Greenlee Co., Arizona, USA
- Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA
- Copperopolis, Calaveras Co., California, USA
- Crisman, Boulder Co., Colorado, USA
- Crystal Pass, Ray, Pinal Co., Arizona, USA
- Douglas Hill Cu. Mine, Lyon Co., Nevada, USA
- East Tintic Mine, Juab Co., Utah, USA
- Fernando Mine/etc, Darwin District, Inyo Co., California, USA
- General Area, Franklin, Sussex Co., New Jersey, USA
- Gold Hill District, Gold Hill, Boulder Co., Colorado, USA
- Gold Hill mine, Tooele Co., Utah, USA
- Grand Canyon, Arizona, USA
- Grandview mine, Grand Canyon, Coconino Co., Arizona, USA
- Hickey #1 Mine, Hansonburg district, Socorro Co., New Mexico, USA
- Hunting Hill quarry, Rockville, Montgomery Co., Maryland, USA
- Iron Blossom Mine, Tintic District, Juab Co., Utah, USA
- Jomac Uranium mine, San Juan Co., Utah, USA
- Loudville Lead Mine, Loudville, Hampshire Co., Massachusetts, USA
- Magma Mine, Superior, Pinal Co., Arizona, USA
- Maid of Sunshine mine, Cochise Co., Arizona, USA
- Majuba Hill mine, Pershing Co., Nevada, USA
- Mammoth-St. Anthony mine, Tiger, Pinal Co., Arizona, USA
- Mamouth Mine, Tiger, Pinal Co., Arizona, USA
- Mascot Mine, Gorham, Coos Co., New Hampshire, USA
- Memphis Mine, Organ district, Dona Ana Co., New Mexico, USA
- Mex-Tex mine, Socorro Co., New Mexico, USA
- Mohawk mine, San Bernardino Co., California, USA
- Monarch mine, Monarch district, Chaffee Co., Colorado, USA
- New Cornelia Mine, Ajo, Pima Co., Arizona, USA
- Old Guard Mine, Tombstone, Cochise Co., Arizona, USA
- Paoli Area, Garvin Co., Oklahoma, USA
- Quick Silver Mine etc, Organ Mts. Area, Dona Ana Co., New Mexico, USA
- Rossie lead mines, St. Lawrence Co., New York, USA
- Sedalia Copper Mine, Sedalia, Chaffee Co., Colorado, USA
- Seven Devils district, Adams Co., Idaho, USA
- Silver Bell mine, Gleeson, Cochise Co., Arizona, USA
- Silver Coin Mine, Humboldt Co., Nevada, USA
- Silver Hill Mine, Tuescon arera, Pima Co., Arizona, USA
- Sterling Hill and Franklin Furnace, Sussex Co., New Jersey, USA
- Tintic district, Utah, USA
- Tintic Standard mine, Dividend, Utah Co., Utah, USA
- Zinc Hill Mine, Darwin Area, Inyo Co., California, USA
- Bontddu trial level, Bontddu, Gwynedd, Wales
- Britannia mine, Snowdonia, Wales
- Brynarian Mine, Talybont, Llangynfelyn, Dyfed, Wales
- Brynyrafr Mine, Talybont, Trefeirig, Dyfed, Wales
- Bwlchrehennaid Mine (Level Newydd), Goginan, Tirymynach, Dyfed, Wales
- Darren Mine, Penbontrhydybeddau, Parcel Canol, Dyfed, Wales
- Dylife Mine, Dylife, Machynlleth, Powys, Wales
- Esgair Hir mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
- Esgair Mwyn Mine, Ysbyty Ystwyth, Upper Gwnnws,Dyfed, Wales
- Esgairfraith Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
- Frongoch Mine, Pontrhydygroes, Dyfed, Wales
- Frongoch, ??
- Geufron Mine, Llanidloes, Powys, Wales
- Glogfawr Mine, Ysbyty Ystwyth, Dyfed, Wales
- Gwaith Yr Afon mine, Penbontrhydybeddau, Trefeirig, Dyfed, Wales
- Hendre Felen Mine, Ysbyty Ystwyth, Dyfed, Wales
- Henfwlch Mine, Talybont, Ceulanymaesmawr, Dyfed, Wales
- Llangynog Mine, Llangynog, Powys, Wales
- Llechwedd Helyg mine, Tir-y-Mynach, Dyfed, Wales
- Llettyhen Mine (Vaughan), Bontgoch, Tirymynach, Dyfed, Wales
- Lodge Park Trial, Tre'r-ddol,Dyfed, Wales
- Nant-y-Cagel mine (Eagle Brook), Talybont, Ceulanymaesmawr, Dyfed, Wales
- Nant-y-Car Mine, Rhayader, Powys, Wales
- Penrhiw mine, Ystumtuen, Dyfed, Wales
- Ystrad Einion Mine, Furnace, Ysgubor-y-coed, Dyfed, Wales
- Kipushi mine, Lubumbashi, Shaba, Zaire
- Musonoi mine, Kolwezi, Shaba, Zaire
Usos y apliaciones
La brochantita es un mineral codiciado por los coleccionistas, por sus cristales verdes tan llamativos, y en algunas ocasiones ha sido utilizado como mena de cobre.
Bibliografía y más información
- Structure Reports of Strukturbericht, vol. 23, p.451, (1959)