Pirrotina
Descripción
Fotografías
En la galería de fotografías dispones de 1 fotografías de Pirrotina
Formación y ambiente
La pirrotina es un mineral típico de segregación magmática. Se forma, por tanto, por cristalización antes de la consolidación de las rocas eruptivas básicas y ultrabásicas y se concentra posteriormente a causa de su elevado peso específico. En este tipo de yacimientos está siempre asociada a minerales de níquel y cobalto, lo cual la hace muy apreciada. También se puede originar por la cristalización de fluidos residuales después de la consolidación de otras rocas (génesis hidrotermal), pero en esta caso nunca es niquelífera.
Accesorio, hidrotermal de alta y media temperatura, ígneo, magmático (ultrabásico), metamórfico
Propiedades fisicas
Hábito: Aparece generalmente como cristales hexagonales, usualmente tabulares y en algunos casos piramidales o en agregados granulares.
Lustre: Metálico
Transparencia: Opaco
Color: Bronce, marrón oscuro
Color en sección fina: Incolora
Raya: Gris oscura, negra
Dureza (Mohs): 3,5-4,5
Tenacidad: Frágil
Exfoliación::
- Primera exfoliación: Imperfecta en [0001]
- Segunda exfoliación: Imperfecta en [1120]
- Tercera exfoliación: Imperfecta
Fractura: Desigual
Densidad: 4,6-4,7 g/cm3 (medida) | 3,95 g/cm3 (calculada)
Cristalografía
Sistema cristalino:Monoclínico
Clase (H-M): 2m (2/m) - Prismática
Grupo espacial: A2/a
Parámetros de la celda: a=12,811Å b=6,87Å c=11,885Å
Estructura del cristal: β=117,3º
Volumen de unidad de celda: V 929,51Å
Z: 26
Difracción de Rayos X:| D(hkl) | Intensidad |
|---|---|
| 2,057 | 100 |
| 2,635 | 90 |
| 2,966 | 90 |
Propiedades ópticas
Tipo: Opaco
Dispersión: Ninguna
Propiedades químicas
Fórmula: Fe7S8
Composición química: S: 37,67%, Fe: 62,33%,
Tests químicos
Fusibilidad: 2; Mineral tipo: Natrolita; Punto de fusión: 800ºC; Funde con mechero de gas
Reacción a los ácidos: Se disuelve en HCL con la liberación de ácido sulfhídrico.
Ensayos en tubo abierto: Libera vapores sulfurosos.
Formación de sublimados: Se funde en un glóbulo negro.
Otras propiedades
Magnetismo: Débilmente magnético
Relaciones con otros minerales
Minerales acompañantes
| Imagen | Mineral | Fórmula | Sistema | Dureza | Color | Raya | Brillo |
|---|---|---|---|---|---|---|---|
 | Ankerita | Ca(Fe2+,Mg)(CO3)2 | Trigonal | 3-4 | Blanco | Vítreo | |
 | Calcopirita | CuFeS2 | Tetragonal | 3,5-4 | Amarillo-latón, a menudo con iridiscencias | Negra verdosa | Metálico |
 | Galena | PbS | Cúbico | 2,5-2,8 | Gris plomo, algo más claro si contiene plata | Negro grisáceo | Metálico |
 | Marcasita | FeS2 | Ortorrómbico | 6-6,5 | Amarillo verdoso latón o bronce casi blanco | Negra grisácea | Metálico |
| Pentlandita | (Fe,Ni)9S8 | Cúbico | 3,5-4 | Metálico | ||
 | Pirita | FeS2 | Cúbico | 6-6,5 | Amarillo latón | Gris, parda o negra verdosa | Metálico |
 | Cuarzo | SiO2 | Trigonal | 7 | Blanco, transparente. Según variación también puede ser rosa, rojizo o negro. | Blanco | Vítreo |
Yacimientos y localidades de interés
Existen grandes yacimientos de pirrotina en Sudbury (Canadá). En esta localidad está particularmente concentrada y asociada a otros minerales de níquel y otros raros que le dan especial valor económico. Otros depósitos aparecen en Manitoba (Canadá), México, Bolivia, Brasil, Noruega y Suecia. En Europa los cristales más llamativos proceden de Trepca, Leoben y Freigerb. En España se han encontrado en la Serranía de Ronda y otras localidades malagueñas, en las provincias de Gerona y Lérida; pero nunca de forma importante; su principal yacimiento de origen sedimentario está en Fornas (La Coruña).
Localidades
- Kohmori mine, Suetake, Japan - Localidad tipo.
- Capillitas mine, Andalgalá, Catamarca, Argentina
- 132 North nickel mine, Widgiemooltha, Western Australia, Australia
- Boddington, Mt Saddleback, Western Australia, Australia
- Colebrook Hill, Rosebery, Tasmania, Australia
- Cygnet, Tasmania, Australia
- Mt Bischoff, Waratah, Tasmania, Australia
- Mt Cleveland Mine, Luina, Tasmania, Australia
- Mt Isa Mine, Mt Isa, Queensland, Australia
- Proprietary mine, Broken Hill, New South Wales, Australia
- Renison Bell mine, Tasmania, Australia
- Brandrücken, Kärnten, Austria
- Rotgülden, Salzburg, Austria
- Schellgaden, Salzburg, Austria
- Aceromarca mine, Mururata 2, Sud Yungas, La Paz, Bolivia
- Alasca mine, Pongo, Murillo, La Paz, Bolivia
- Mina Flores mine, Huanuni district, Oruro Dept., Bolivia
- Siglo Veinte (XX) mine, Llallagua, Bustillo, Potosí Dept, Bolivia
- Chapada Diamantina, Serra de Mangabeira, Bahia, Brazil
- Lavra do Énio pegmatite, Galiléia, Minas Gerais, Brazil
- Morro Vehlo, Ouro Preto, Minas Gerais, Brazil
- Morro Velho Gold Mine, Minas Gerais, Brazil
- Morro Velho Gold mine, Nova Lima, Minas Gerais, Brazil
- Roberto Caldeira mine, Linópolis, Minas Gerais, Brazil
- Madan, Rhodope Mtns., Plovdiv, Bulgaria
- Bessemer Mine, Mayo Township, Bancroft, Hastings Co., Ontario, Canada
- Bicroft mine, Bancroft, Hastings Co., Ontario, Canada
- Cardiff Uranium mine, Wilberforce, Ontario, Canada
- Davis Hill, Dungannon Township, Bancroft, Hastings Co., Ontario, Canada
- Demix-Varennes quarry, Saint-Amable sill, Varennes, Verchéres Co., Québec, Canada
- Desmont Mine, Wilberforce, Monmouth Township, Haliburton Co., Ontario, Canada
- Dundas Quarry, Wentworth Co., Ontario, Canada
- East Kemptville Tin Mine, East Kemptville, Yarmouth Co., Nova Scotia, Canada
- Elisabethtown, Ontario, Canada
- Engineer mine, Tagish Lake, near Atlin, British Columbia, Canada
- Evans-Lou pegmatite, near St-Pierre-de-Wakefield, Portland Twp., Papineau Co., Québec, Canada
- Francon quarry, St-Michel distr., Montreal Island, Québec, Canada
- Jeffrey pit, Asbestos, Shipton Twp., Richmond Co., Québec, Canada
- Lac Nicolet mine, Ham Sud, Wolfe Co., Québec, Canada
- Lake George antimony mine, York Co., New Brunswick, Canada
- MacDonald mine, Monteagle Township, Bancroft, Hastings Co., Ontario, Canada
- Mt St.-Hilaire, Rouville Co., Québec, Canada
- Nanisivik Mine, Baffin Island, Nunavut, Northwest Territories, Canada
- Noranda mine, Rouyn district, Québec, Canada
- Poudrette quarry, Mt St.-Hilaire, Rouville Co., Québec, Canada
- Richardson Mine, Wilberforce, Ontario, Canada
- Saranac Mine, Tory Hill, Monmouth Township, Hastings Co., Ontario, Canada
- Silvana mine, Sandon, British Columbia, Canada
- Silver Crater mine, Faraday Township, Bancroft, Hastings Co., Ontario, Canada
- Webster, Ontario, Canada
- York River Skarn, Dungannon Township, Bancroft, Hastings Co., Ontario, Canada
- Alexander Gallery, Vrancice, Príbram, Stredocesky, Czech Republic
- Horni Bory, Zdar nad Sazavou, Maehren, Czech Republic
- Kank, Kutna Hora, Stredocesky kraj, Bohemia, Czech Republic
- Kasejovice, Západocesky, Czech Republic
- Libodrice, Kutna Hora, Stredocesky, Czech Republic
- Medenec (Kupferberg), Chomutov, Krusne Hory, Vychodocesky, Czech Republic
- Moldava, Teplice, Krusne Hory, Vychodocesky, Czech Republic
- Novy rybnik, Pisek, Jihocesky, Czech Republic
- Policany, Kutna Hora, Czech Republic
- Vapenna (Setzdorf), Maehren, Czech Republic
- Armboth Dyke, Thirlmere, Cumbria, England
- Bonser Mine, Coniston copper mines, Cumbria, England
- Botallack mine, Botallack, St. Just, Cornwall, England
- Bramcrag Quarry, St.John's in the Vale, Cumbria, England
- Cambokeels mine, near Eastgate, Weardale, Co. Durham, England
- Cambrockeels mine, Weardale, Co. Durham, England
- Carrock mine, Caldbeck Fells, Cumbria, England
- Castle Nook Mine, Newlands Valley, Cumbria, England
- Coniston Copper Mines, Coniston, Cumbria, England
- Copper Plate Mine, Borrowdale, Cumbria, England
- Dale Head Mine, Newlands Valley, Cumbria, England
- East Pool mine, Illogan, Cornwall, England
- Frazer's Hush mine, Rookhope, Weardale, Co. Durham, England
- Goldscope Mine, Newlands Valley, Cumbria, England
- Great Onslow Consols, St. Breward, Cornwall, England
- Levant mine, Pendeen, St. Just, Cornwall, England
- Meldon BR Quarry, Okehampton, Devon, England
- New Aplite Quarry, Meldon, Okehampton, Devon, England
- Paddy End Mine, Coniston, Cumbria, England
- Red a Venn mine, Okehampton, Devon, England
- Sidestrand (beach), Cromer, Norfolk, England
- St. Austell Consols, St. Austell, Cornwall, England
- Tansley, Derbyshire, England
- Thurstaston Beach, Wirral, Merseyside, England
- Wanthwaite Mine, St. John's in the Vale, Cumbria, England
- Wheal Jane, Kea, Truro, Cornwall, England
- Wheal Kind, St. Agnes, Cornwall, England
- Wheal Kine, St. Agnes, Cornwall, England
- Wheal Maudlin, Lanlivery, Cornwall, England
- Jokisivu (Kujankallio), Huittinen, Turku-Pori, Finland
- Bousiéyas, Alpes-Maritimes, France
- Buhulien, Côtes-du-Nord, France
- Chessy-les-Mines, Rhône, Rhône-Alpes, France
- Les Farges mine, Corrèze, Limousin, France
- Trimouns Talc mine, Ariège, Midi-Pyrénées, France
- Andreasberg, Harz Mtns., Niedersachsen, Germany
- Artenberg quarry, Kinzigtal, Baden-Wuerttemberg, Germany
- Bärensteinbruch quarry, Radautal, Bad Harzburg, Harz Mts, Sachsen, Germany
- Bergmannstrost mine, St. Andreasberg, Harz Mts, Sachsen, Germany
- Catharina Neufang mine, St. Andreasberg, Harz Mts, Sachsen, Germany
- Clara mine, Oberwolfach, Baden-Wuerttemberg, Germany
- Daniel mine, Schneeberg, Sachsen, Germany
- Fohberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
- Karem quarry, Birresborn, Eifel, Germany
- Orberg-Badberg, Kaiserstuhl, Baden-Wuerttemberg, Germany
- Rammelsberg mine, Goslar, Harz Mts, Sachsen, Germany
- Riekensglück, Schmalenbergsklippe, Bad Harzburg, Harz Mts, Sachsen, Germany
- Samson mine, St. Andreasberg, Harz Mts, Sachsen, Germany
- Spitzenberg mines, Bad Harzburg, Harz Mts, Sachsen, Germany
- St. Andreasberg, Hartz Mts, Niedersachsen, Germany
- Hilarion adit, Agios Konstandinos, Laurion, Attica, Greece
- Fiskenaesset, Greenland
- Fiskenaesset, Nuuk, Greenland
- Ivigtut, Arsuk Fjord, Greenland
- Mosaboni, India
- Silvermines district, Co. Tipperary, Ireland
- Snaefell Mine, Laxey, Snaefell, Isle of Man
- Mount Vesuvius, Naples, Campania, Italy
- Val Graveglia, Liguria, Italy
- Chichibu mine, Ootaki-mura, Chichibu, Saitama Pref., Japan
- Sarbay silver mine, Rudni, Kusteni Oblast, Kazakhstan
- Aquilesas Serdan, Chihuahua, Mexico
- Mina Ojuela, Mapimi, Durango, Mexico
- Potosi mine, Santa Eulalia, Chihuahua, Mexico
- Einerkilen, Flåt, Evje, Aust-Agder, Norway
- Evje-Ivedal, Iveland, Aust-Agder, Norway
- Kongsberg, Buskerud, Norway
- Uchucchacua District, Dos de mayo Prov., Huanuco Dept., Peru
- Panasqueira mine, Panasqueira, Beira-Beixa, Portugal
- Herja (Hersza), Chiuzbaia (Kisbanya), Judetul Maramures, Romania
- Kisbanya, Romania
- 1st Sovietski mine, Dal'negorsk, Primorskiy Kray, Russia
- 2nd Sovietski mine, Dal'negorsk, Primorskiy Kray, Russia
- Aldan Shield, Yakutiya, Siberia, Russia
- Dal'negorsk, Primorskiy Kray, Russia
- Dal'negorsk, Russia
- Dodo mine, Polar Urals, Tyumen Oblast, Russia
- Kochkar, Chelyabinsk, Russia
- Komsomol mine, Talnakh deposit, Norilsk, Siberia, Russia
- Mt Alluaiv and Mt. Karnasurt, Lovozero alkaline massif, Kola Peninsula, Russia
- Mt Koashva, Khibina alkaline complex, Kola Peninsula, Russia
- Mutnovskoe, Kamchatka, Russia
- Nepskoye potash salt deposit, Zapiski Vseross, Russia
- Nikolaevskiy, Dal'negorsk, Primorskiy Kray, Russia
- Polar Urals, Tyumen Oblast, Russia
- Puiva, Saranpual, Polar Urals, Russia
- Sentyabr'skiy, Dal'negorsk, Primorskiy Kray, Russia
- Verchniy Mine, Dal'negorsk, Primorskiy Kray, Russia
- Vuoriyarvi massif, North Karelia, Murmansk region, Kola Peninsula, Russia
- Coir Loch Kander, Braemar, Grampian, Scotland
- Coire Buidhe, Glen Creran, Argyll & Bute, Scotland
- Craignure, Inveraray, Argyll & Bute, Scotland
- Silver Glen, Clackmannanshire, Scotland
- Pezinok Mine, Malé Karpaty Mts, Slovakia
- Viborlat Mts, ??, Slovakia
- Messina, Transvaal, South Africa
- Fahlun, Kopparberg, Örebro, Sweden
- Håkansboda, Västmanland, Sweden
- Yxsjoberg, Värmland, Sweden
- Yxsjöberg, Västmanland, Sweden
- Lengenbach quarry, Binntal, Valais, Switzerland
- Nikitovka deposit, Donbass, Ukraine
- A.C. Perham mine, West Paris, Oxford Co., Maine, USA
- Acton mine, Acton, York Co., Maine, USA
- Adirondacks, Sanford & Star lakes, Essex Co., New York, USA
- Alfred Whitney & B.B. Whiteny mines, Baldwin, Cumberland Co., Maine, USA
- Amelia Court House, Virginia, USA
- American mine, Bingham Canyon, Salt Lake Co., Utah, USA
- Amity, Orange Co., New York, USA
- Atlantic/Blue Hill/Oven/Douglas/Granger etc, Blue Hill, Hancock Co., Maine, USA
- Atwood mine, Lisbon, Grafton Co., New Hampshire, USA
- Balmat-Edwards District, Governor, St.Lawrence Co., New York, USA
- Bayer-Mingolla Quarry, Ashland, Norfolk Co., Massachusetts, USA
- Beatson Mine, Prince Willuam Sound, Alaska, USA
- Bennett & Orchard Pit mines, Buckfield, Oxford Co., Maine, USA
- Benson Mines, Newton Falls/Star Lake, St.Lawrence Co., New York, USA
- Bergendahl/Davis/Pease/Piper Hill/Tin, Newfield, York Co., Maine, USA
- Betts Manganese Mine, Plainfield, Hampshire Co., Massachusetts, USA
- Betty Baker Mine, Hillsville, Virginia, USA
- Big Creek - Rush Creek area, Fresno Co., California, USA
- Big Ridge Mine, Hazelwood, Haywood Co., North Carolina, USA
- Bigger Pegmatite/Malachite Mines, Morrison, Jefferson Co., Colorado, USA
- Bisbee, Cochise Co., Arizona, USA
- Black Hawk district, Grant Co., New Mexico, USA
- Blackbird District near Cobalt, Salmon, Lehmi Co., Idaho, USA
- Bloomington Crushed Stone Quarry, Monroe Co., Indiana, USA
- Booth & Lane Mines, Monroe, Fairfield Co., Connecticut, USA
- Boston-Acton mine, Acton, York Co., Maine, USA
- Brandywine Quarry, Willimgton, New Castle Co., Delaware, USA
- Bunker Hill mine, Kellogg, Shoshone Co., Idaho, USA
- Callahan mine, Brooksville, Hancock Co., Maine, USA
- Central York Mts., West Seward Peninsula, Alaska, USA
- Chino ore body, Central Mining District, Grant Co., Nevada, USA
- Christmas Mine, Hayden, Gila Co., Arizona, USA
- Cole mine, Stoneham, Oxford Co., Maine, USA
- Conklin quarry, Lincoln, Providence Co., Rhode Island, USA
- Copper Hill Area mines, Ducktown, Polk Co., Tennessee, USA
- Copper King mine, Gold Hill district, Boulder Co., Colorado, USA
- Copper Mountain Area, Sulzer/Prince of Wales Island, Alaska, USA
- Copper Queen Mine, Bisbee, Cochise Co., Arizona, USA
- Cornwall, Lebanon Co., Pennsylvania, USA
- Cotopaxi Mine, Cotopaxi, Fremont Co., Colorado, USA
- Courtland-Gleeson District, Cochise Co., Arizona, USA
- Coventry Area, Kent Co., Rhode Island, USA
- Coyote Peak, Orick, Humboldt Co., California, USA
- Crestmore Quarry, Crestmore, Riverside Co., California, USA
- Davis pyrite mine, Rowe, Franklin Co., Massachusetts, USA
- Dirigo mine, Acton, York Co., Maine, USA
- Dorsey Mansion Area, Point of Rocks Mesa, Socorro Co., New Mexico, USA
- Ducktown mine, Polk Co., Tennessee, USA
- Ducktown, Polk Co., Tennessee, USA
- Duluth complex, Hibbing, Minnesota, USA
- Dunn mines, Norway, Oxford Co., Maine, USA
- Durfee Hill Gold mine, Glocester, Providence Co., Rhode Island, USA
- Eagle Mine, Bonanza mining district, Saguache Co., Colorado, USA
- Edenville, Orange Co., New York, USA
- Edwards, Gouverneur, St. Lawrence Co., New York, USA
- Emerson mine, Castine, Hancock Co., Maine, USA
- Esterbrook copper district, Albany Co., Wyoming, USA
- Estes mine, Baldwin, Cumberland Co., Maine, USA
- Fernando Mine/etc, Darwin District, Inyo Co., California, USA
- Flambeau mine, Ladysmith, Rusk Co., Wisconsin, USA
- Flux Mine, Harshaw District, Patagonia Mountains, Santa Cruz Co., Arizona, USA
- Foote Spodumene Mine, Kings Mountain, Cleveland Co., North Carolina, USA
- French Creek Mines, Knauertown, Chester Co., Pennsylvania, USA
- Gap mine, Lancaster Co., Pennsylvania, USA
- Gap Nickel Mine, Bart Township, Lancaster Co., Pennsylvania, USA
- Getchell Mine, Golconda, Humbolt Co., Nevada, USA
- Gillman District, Colorado, USA
- Gold Hill District, Jackson Co., Oregon, USA
- Goodhope mine, South Pass-Atlantic City gold district, Fremont Co., Wyoming, USA
- Grace Mine, Morgantown, Berks Co., Pennsylvania, USA
- Granite Gap, Hidalgo Co., New Mexico, USA
- Grants Mills, Cumberland, Providence Co., Rhode Island, USA
- Greene's Farm garnet Mine, Southbury, Litchfield Co., Connecticut, USA
- Gypsy Queen Mine, Oreana, Pershing Co., Nevada, USA
- Hale Creek/Blue Jay/Lucky Bill Mines, Trinity Co., California, USA
- Hall Quarry, Gastonbury, Connecticut, USA
- Harriman prospect, Union, Knox Co., Maine, USA
- Hercules mine, Penobscot, Hancock Co., Maine, USA
- High Falls Mine, Canton, St. Lawrence Co., New York, USA
- Highland mine, Penobscot, Hancock Co., Maine, USA
- Homestake Mine etc, Ambrosia Lake District, McKinley Co., New Mexico, USA
- Howard-Montgomery quarry, Howard Co., Maryland, USA
- Howe Hill Nickel mine, Rumford, Oxford Co., Maine, USA
- Hunting Hill quarry, Rockville, Montgomery Co., Maryland, USA
- Indian Lake, Essexty, New York, USA
- Interstate 295 roadcut, Cranston, Providence Co., Rhode Island, USA
- Irish Creek Tin Mines, Vesuvius, Rockbridge Co., Virginia, USA
- Island Mountain Mine, Trinity Co., California, USA
- Island Mt., Mendocino Co., California, USA
- Italian Mt. Area, Aspen, Gunnison Co., Colorado, USA
- Jensen Quarry, Riverside Co., California, USA
- Jones mine, Brooksville, Hancock Co., Maine, USA
- Josephine Creek, Galice District, Josephine Co., Oregon, USA
- Katahdin Pyrrhotite Locality, Katahdin Iron Works, Piscataquis Co., Maine, USA
- Keyes Mica mines, Orange, Grafton Co., New Hampshire, USA
- Keystone Quarry, Cornog, Chester Co., Pennsylvania, USA
- Keystone-Douglas Creek gold-copper district, Albany Co., Wyoming, USA
- King Mountain Area, Crowders, Gaston Co., North Carolina, USA
- Kingsbridge, Bronx Co., New York, USA
- Kokomo Area mines, Ten Mile District, Summit Co., Colorado, USA
- Lebanon-Acton mine, Lebanon, York Co., Maine, USA
- Lime Crest Quarry, Sparta, Sussex Co., New Jersey, USA
- Limeburner prospect, Penobscot, Hancock Co., Maine, USA
- Limecrest Quarry, Newton, Sussex Co., New Jersey, USA
- Lobikis mine, Peru, Oxford Co., Maine, USA
- Lord Hill mine, Stoneham, Oxford Co., Maine, USA
- Lord's Hill, Stoneham Township, Oxford Co., Maine, USA
- Lost River Area, Seward Peninsula, Alaska, USA
- Lubec Lead mine, Lubec, Washington Co., Maine, USA
- Magdalena district, Socorro Co., New Mexico, USA
- Mahopac Iron Mine, Brewster, Putnam Co., New York, USA
- Majuba Hill mine, Pershing Co., Nevada, USA
- Martin Marietta Quarry, Hickory, Catawba Co., North Carolina, USA
- Melrose mine, Stoneham, Oxford Co., Maine, USA
- Millington quarry, Millington, Somerset Co., New Jersey, USA
- Mineral Center, Cook Co., Minnesota, USA
- Mineral Hill/Weeks-Ham Mines etc, Wakefield, Carroll Co., New Hampshire, USA
- Monte Cristo District, Snohomish Co., Washington, USA
- New Rambler copper-gold-platinum district, Albany Co., Wyoming, USA
- North Castine mine, Castine, Hancock Co., Maine, USA
- Orchard Quarry/Bennett farm, Buckfield Township, Oxford Co., Maine, USA
- Ore Hill mine, Warren, Grafton Co., New Hampshire, USA
- Paddock Copper mine, Lyman, Grafton Co., New Hampshire, USA
- Pattuck mine, Alexandria, Grafton Co., New Hampshire, USA
- Perkins Island Beryl locality, Georgetown, Sagadahoc Co., Maine, USA
- Prospect Mt., Litchfield, Litchfield Co., Connecticut, USA
- Providence, Providence Co., Rhode Island, USA
- Ray Mica Mine, Yancey Co., North Carolina, USA
- Redcliff Area, Eagle Co., Colorado, USA
- Ruth/Consolidated/Pit/Betty Joe Mines, Ely, White Pine Co., Nevada, USA
- Saunders Mica mine, Waterford, Oxford Co., Maine, USA
- Schwartzwalder Mine, Golden Area, Jefferson Co., Colorado, USA
- Silver Crown copper district, Laramie Co., Wyoming, USA
- Snow/Sackett/Marcia/Old/Melvin/Wright Mines etc, Chester, Hampden Co., Massachusetts, USA
- Snowbird/Mary Ellen Mine, Atlantic City District, Fremont Co., Wyoming, USA
- Standish mine, Maine, USA
- Stillwater complex, Benbow Area, Stillwater Co., Montana, USA
- Sunnyside mine, Silverton Mining District, Howardsville, San Juan Co., Colorado, USA
- Thomas Mine, Pisgah National Forest, Buncombe Co., North Carolina, USA
- Tilly Foster Mine, Brewster, Putnam Co., New York, USA
- Trap Hill, Wilkes Co., North Carolina, USA
- Treadwell Mine, Douglas Island opposite Junea City, SE Juneau Area, Alaska, USA
- Trumball Peak, Mariposa Co., California, USA
- Trumbull Creek Area, Mariposa Co., California, USA
- Trumbull, Fairfield Co., Connecticut, USA
- Tybo, Utah, USA
- Van Stone Mine Area, Stevens Co., Washington, USA
- Vermiculite Prospects, Big Sandy Creek, Hill Co., Montana, USA
- War Bonnet copper district, Converse Co., Wyoming, USA
- Warren Nickel prospect, Warren, Knox Co., Maine, USA
- Wood Copper Mine, micaville, Cleburne Co., Alabama, USA
- Wood River District, Hailey, Blaine Co., Idaho, USA
- Bontddu trial level, Bontddu, Gwynedd, Wales
- Clogau St. Davids mine, Bontddu, Gwynedd, Wales
- Drws-y-Coed mine, Llandwrog, Gwynedd, Wales
- Dylife Mine, Dylife, Machynlleth, Powys, Wales
- Erglodd mine, Talybont, Llangynfelyn, Dyfed, Wales
- Gwynfynydd mine, near Dolgellau, Gwynnedd, Wales
- Panorama Mine, Barmouth, Gwynedd, Wales
- Parys Mountain mine, Anglesey, Wales
- Prince Edward Mine, Trawsfynydd, Gwynnedd, Wales
- Simdde Dylluan Mine, Nantlle, Gwynnedd, Wales
- Vigra Mine, Bontddu, Gwynedd, Wales
Usos y apliaciones
La pirrotina es un mineral que cuando aparece en estado puro tiene poco interés. Sin embargo, cuando aparece asociada a níquel, cobalto y platino tiene gran valor por la importancia que le dan estos minerales.