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Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USAi
Regional Level Types
Butte-Silver Bow (Butte; Silver Bow Co.)City
MontanaState
USACountry

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Key
05543920014947943913007.jpg
Highland Centennial Gold Nugget

Butte-Silver Bow, Montana, USA
03356650014947943929180.jpg
More Specimens in the Safe

Butte-Silver Bow, Montana, USA
01316980014947943931416.jpg
More Specimens in the Safe

Butte-Silver Bow, Montana, USA
05543920014947943913007.jpg
Highland Centennial Gold Nugget

Butte-Silver Bow, Montana, USA
03356650014947943929180.jpg
More Specimens in the Safe

Butte-Silver Bow, Montana, USA
01316980014947943931416.jpg
More Specimens in the Safe

Butte-Silver Bow, Montana, USA
05543920014947943913007.jpg
Highland Centennial Gold Nugget

Butte-Silver Bow, Montana, USA
03356650014947943929180.jpg
More Specimens in the Safe

Butte-Silver Bow, Montana, USA
Locality type:
Largest Settlements:
PlacePopulation
Butte34,190 (2011)
Butte-Silver Bow (Balance)33,525 (2013)
Walkerville700 (2017)
Other/historical names associated with this locality:
City and County of Butte-Silver Bow
Other Languages:
French:
comté de Silver Bow, Montana, États-Unis
German:
Silver Bow County, Montana, Vereinigte Staaten
Italian:
contea di Silver Bow, Montana, Stati Uniti d'America
Russian:
Силвер-Боу, Монтана, Соединённые Штаты Америки
Simplified Chinese:
比尤特-銀弓市和縣, 蒙大拿州, 美国
Spanish:
Condado de Silver Bow, Montana, Estados Unidos
Albanian:
Silver Bow County, Montana, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة سيلفير بو, مونتانا, الولايات المتحدة
Armenian:
Սիլվեր շրջան, Մոնտանա, Ամերիկայի Միացյալ Նահանգներ
Basque:
Silver Bow konderria , Montana
Bavarian:
Silver Bow County, Montana, Vaoanigte Stootn
Bishnupriya Manipuri:
সিলভার বৱ কাউন্টি, মন্টানা, তিলপারাষ্ট্র
Bulgarian:
Силвър Боу, Монтана, Съединени американски щати
Cebuano:
Silver Bow County, Montana
Dutch:
Silver Bow County, Montana, Verenigde Staten
Esperanto:
Kantono Arĝenta Arko, Montano
Estonian:
Silver Bow' maakond, Montana, Ameerika Ühendriigid
Farsi/Persian:
شهرستان سیلور بو، مونتانا, مونتانا, ایالات متحده آمریکا
Georgian:
სილვერ-ბოუს ოლქი, მონტანა, ამერიკის შეერთებული შტატები
Hungarian:
Silver Bow megye, Montana, Amerikai Egyesült Államok
Japanese:
シルバーボウ郡, モンタナ州, アメリカ合衆国
Low Saxon/Low German:
Silver Bow County, Montana, USA
Min Dong Chinese:
Silver Bow Gông, Montana
Minnan / Hokkien-Taiwanese:
Silver Bow Kūn
Norwegian:
Silver Bow County, Montana, USA
Polish:
Hrabstwo Silver Bow, Montana, Stany Zjednoczone
Portuguese:
Condado de Silver Bow, Montana, Estados Unidos
Romanian:
Comitatul Silver Bow, Montana, Statele Unite ale Americii
Sardinian:
contea de Silver Bow, Montana, Istados Unidos de Amèrica
Scottish Gaelic:
Silver Bow County, Montana, Na Stàitean Aonaichte
Serbian:
Округ Силвер Боу, Монтана, Сједињене Америчке Државе
Serbo-Croatian:
Silver Bow County, Montana, Sjedinjene Američke Države
Swedish:
Silver Bow County, Montana, USA
Traditional Chinese:
比尤特-銀弓市和縣, 蒙大拿州, 美國
Turkish:
Silver Bow County, Montana, Amerika Birleşik Devletleri
Ukrainian:
Сілвер-Бау, Монтана, Сполучені Штати Америки
Urdu:
سلور بو کاؤنٹی، مونٹانا, مونٹانا, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Silver Bow, Montana, Chủng Quốc Hoa Kỳ
Waray:
Condado han Silver Bow, Montana, Estados Unidos
Western Punjabi:
سلور بو کاؤنٹی،مونٹانا, مونٹانا, امریکہ


In 1977, the city of Butte and the county of Silver Bow governments consolidated to form the sole entity of Butte-Silver Bow. The city covers 718 square miles (1,860 km2), and, according to the 2010 census, has a population of 33,503, making it Montana's fifth largest city.

In the 19th and 20th centuries, the city of Butte, Montana, experienced every stage of development of a mining town, from camp to boomtown to mature city to center for historic preservation and environmental cleanup. Unlike most such towns, Butte's urban landscape includes mining operations set within residential areas, making the environmental consequences of the extraction economy all the more apparent. Despite the dominance of the Anaconda Company, Butte was never a company town. It prided itself on architectural diversity and a civic ethos of rough-and-tumble individualism. In the 21st century, efforts at interpreting and preserving Butte's heritage are addressing both the town's historical significance and the continuing importance of mining to its economy and culture.[*]

Butte was one of the largest cities in the Rocky Mountains in the late 1800s and early 1900s. Silver Bow County (Butte and suburbs) had 24,000 people in 1890, and peaked at 100,000 in 1920[citation needed]. The population steadily declined with falling copper prices after World War I, eventually dropping to 34,000 in 1990 and stabilized. In 2013, the population remains at 34,200. In its heyday from the late 19th century to circa 1920, it was one of the largest and most notorious copper boomtowns in the American West, home to hundreds of saloons and a famous red-light district. The documentary Butte, America, depicts its history as a copper producer and the issues of labor unionism, economic rise and decline, and environmental degradation that resulted from the activity.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

159 valid minerals. 2 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

''
Localities:
Acanthite
Formula: Ag2S
Localities: Reported from at least 24 localities in this region.
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: USGS Bull 574
Aikinite
Formula: PbCuBiS3
Alabandite
Formula: MnS
Albite
Formula: Na(AlSi3O8)
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Alunite
Formula: KAl3(SO4)2(OH)6
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed
'Amphibole Supergroup var: Uralite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed
Anatase
Formula: TiO2
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen
Andalusite
Formula: Al2(SiO4)O
Reference: Guidebook for the Butte Field Meeting of the Society Of Economic Geologists, 1973
'Andorite'
Formula: AgPbSb3S6
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Anglesite
Formula: PbSO4
Anhydrite
Formula: CaSO4
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Antlerite
Formula: Cu3(SO4)(OH)4
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Localities: Reported from at least 7 localities in this region.
Arsenolite
Formula: As2O3
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Arsenopyrite
Formula: FeAsS
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Azurite
Formula: Cu3(CO3)2(OH)2
Localities: Reported from at least 8 localities in this region.
Baryte
Formula: BaSO4
Localities: Reported from at least 24 localities in this region.
Beraunite
Formula: Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Beryl
Formula: Be3Al2(Si6O18)
Betekhtinite
Formula: (Cu,Fe)21Pb2S15
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Localities: Reported from at least 8 localities in this region.
Böhmite
Formula: AlO(OH)
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Boothite
Formula: CuSO4 · 7H2O
Reference: Handbook of Mineralogy
Bornite
Formula: Cu5FeS4
Localities: Reported from at least 58 localities in this region.
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Bromargyrite
Formula: AgBr
Reference: USGS Bull 574
Calcite
Formula: CaCO3
Localities: Reported from at least 25 localities in this region.
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Caledonite
Formula: Pb5Cu2(SO4)3(CO3)(OH)6
Reference: Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: Appendix 2: 23,26.
Canfieldite
Formula: Ag8SnS6
Reference: Van King
Cassiterite
Formula: SnO2
Reference: Rocks & Min.: 16:242; USGS Bull. #624: 180.
Cerussite
Formula: PbCO3
'Chabazite'
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed.
Chalcanthite
Formula: CuSO4 · 5H2O
Chalcocite
Formula: Cu2S
Localities: Reported from at least 72 localities in this region.
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 73 localities in this region.
Chalcosiderite
Formula: CuFe3+6(PO4)4(OH)8 · 4H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Chamosite var: Thuringite
Formula: (Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Chlorargyrite
Formula: AgCl
Localities: Reported from at least 11 localities in this region.
'Chlorite Group'
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Localities: Reported from at least 9 localities in this region.
'Clinopyroxene Subgroup'
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Clintonite
Formula: Ca(Mg,Al)3(Al3SiO10)(OH)2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Colusite (TL)
Formula: Cu13VAs3S16
Localities: Reported from at least 9 localities in this region.
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Can Min 19 (1981), 423; Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974; Dana 7:I:387.
Copiapite
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Copper
Formula: Cu
Localities: Reported from at least 21 localities in this region.
'Copper Pitch Ore'
'Copper Stain'
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Coquimbite
Formula: AlFe3(SO4)6(H2O)12·6H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Cornwallite
Formula: Cu5(AsO4)2(OH)4
Corundum
Formula: Al2O3
Corundum var: Sapphire
Formula: Al2O3
Reference: Jay Ellis Ransom,1974, Gems and Minerals of America
Covellite
Formula: CuS
Localities: Reported from at least 30 localities in this region.
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: Weed, W. H. Geology and Ore Deposits of the Butte District, Montana; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Cuprite
Formula: Cu2O
Localities: Reported from at least 12 localities in this region.
Curite
Formula: Pb3(UO2)8O8(OH)6 · 3H2O
Reference: USGS Bull 574
Danburite
Formula: CaB2Si2O8
Reference: Rocks & Minerals (Nov-Dec. 2003)
Dickite
Formula: Al2(Si2O5)(OH)4
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen
Digenite
Formula: Cu9S5
Localities: Reported from at least 7 localities in this region.
Diopside
Formula: CaMgSi2O6
Djurleite
Formula: Cu31S16
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 22 localities in this region.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: van Laer, in preparation
'Electrum'
Formula: (Au,Ag)
Reference: Chris Gammons and Ryan Stevenson (2015) Silver Mineralogy of the Butte Mines. 2015 Mining and Mineral Symposium, Montana Bureau of Mines and Geology p50; Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Enargite
Formula: Cu3AsS4
Localities: Reported from at least 58 localities in this region.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Epsomite
Formula: MgSO4 · 7H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Fayalite
Formula: Fe2+2SiO4
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
'Fayalite-Forsterite Series'
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
'Feldspar Group'
Reference: Rocks & Minerals 47:3 pp160-164
Ferberite
Formula: FeWO4
Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
Fluorite
Formula: CaF2
Localities: Reported from at least 26 localities in this region.
Forsterite
Formula: Mg2SiO4
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Furutobeite
Formula: (Cu,Ag)6PbS4
Reference: Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Galena
Formula: PbS
Localities: Reported from at least 61 localities in this region.
'Garnet Group'
Formula: X3Z2(SiO4)3
'Glass'
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Goethite
Formula: α-Fe3+O(OH)
Gold
Formula: Au
Localities: Reported from at least 67 localities in this region.
Goldfieldite
Formula: (Cu102)Te4S12S
Reference: Handbook of Mineralogy
Goslarite
Formula: ZnSO4 · 7H2O
Greenockite
Formula: CdS
Grossular
Formula: Ca3Al2(SiO4)3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 7 localities in this region.
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Helvine
Formula: Be3Mn2+4(SiO4)3S
Localities: Reported from at least 6 localities in this region.
Hematite
Formula: Fe2O3
Localities: Reported from at least 7 localities in this region.
Hematite var: Specularite
Formula: Fe2O3
Reference: Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
'Heulandite subgroup'
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed.
Hinsdalite
Formula: PbAl3(PO4)(SO4)(OH)6
'Hornblende'
Hübnerite
Formula: MnWO4
Localities: Reported from at least 24 localities in this region.
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Reference: Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
Ilmenite
Formula: Fe2+TiO3
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen
Jalpaite
Formula: Ag3CuS2
Reference: Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Kaolinite
Formula: Al2(Si2O5)(OH)4
'K Feldspar'
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Kirschsteinite
Formula: CaFe2+SiO4
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Larosite
Formula: (Cu,Ag)21PbBiS13
Reference: Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Libethenite
Formula: Cu2(PO4)(OH)
'Limonite'
Formula: (Fe,O,OH,H2O)
Localities: Reported from at least 16 localities in this region.
Linarite
Formula: PbCu(SO4)(OH)2
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 555; Rocks & Minerals 81: 208-213.
Luzonite
Formula: Cu3AsS4
Magnetite
Formula: Fe2+Fe3+2O4
Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 27 localities in this region.
Manganite
Formula: Mn3+O(OH)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Marcasite
Formula: FeS2
Mawsonite
Formula: Cu6Fe2SnS8
Reference: Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Melanterite var: Cuprian Melanterite
Formula: (Fe,Cu)SO4 · 7H2O
'Mica Group'
Reference: USGS Bull 574
Microcline
Formula: K(AlSi3O8)
Molybdenite
Formula: MoS2
Localities: Reported from at least 24 localities in this region.
Montanite (TL)
Formula: Bi2(TeO6) · 2H2O
Description: Occurs as an alteration product of Tetradymite.
Reference: American Journal of Science (1868): 95: 318; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 637.; USGS Bull 574
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 11 localities in this region.
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 8 localities in this region.
Natrojarosite ?
Formula: NaFe3(SO4)2(OH)6
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Orthoclase
Formula: K(AlSi3O8)
Palygorskite
Formula: (Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen
Pearceite
Formula: [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]
Localities: Reported from at least 7 localities in this region.
Petedunnite
Formula: Ca(Zn,Mn2+,Mg,Fe2+)Si2O6
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Pickeringite
Formula: MgAl2(SO4)4 · 22H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Polybasite
Formula: [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Powellite
Formula: Ca(MoO4)
Proustite
Formula: Ag3AsS3
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
'Psilomelane'
Formula: Mn, O
Localities: Reported from at least 10 localities in this region.
Pyrargyrite
Formula: Ag3SbS3
Localities: Reported from at least 7 localities in this region.
Pyrite
Formula: FeS2
Localities: Reported from at least 126 localities in this region.
Pyrolusite
Formula: Mn4+O2
Pyromorphite
Formula: Pb5(PO4)3Cl
Pyrophyllite
Formula: Al2Si4O10(OH)2
'Pyroxene Group'
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Localities: Reported from at least 145 localities in this region.
Quartz var: Amethyst
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen
Quartz var: Jasper
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz var: Smoky Quartz
Formula: SiO2
Ramsdellite
Formula: Mn4+O2
Reference: The mineralogy of the butte district, Montana By John M. Guilbert and Lester G. Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Rhodochrosite
Formula: MnCO3
Localities: Reported from at least 74 localities in this region.
Rhodonite
Formula: Mn2+SiO3
Localities: Reported from at least 40 localities in this region.
Romanèchite
Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10
Reference: "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Römerite
Formula: Fe2+Fe3+2(SO4)4 · 14H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Rutile
Formula: TiO2
Sanidine
Formula: K(AlSi3O8)
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen
Scheelite
Formula: Ca(WO4)
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Seligmannite
Formula: PbCuAsS3
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Siderite
Formula: FeCO3
Siderite var: Manganoan Siderite
Formula: (Fe,Mn)CO3
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed
Silver
Formula: Ag
Localities: Reported from at least 33 localities in this region.
Smithsonite
Formula: ZnCO3
Sphalerite
Formula: ZnS
Localities: Reported from at least 98 localities in this region.
Sphalerite var: Cleiophane
Formula: ZnS
Reference: Rob Lavinsky (ex. Richard Haas and Robert Whitmore specimen)
Spinel
Formula: MgAl2O4
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Stephanite
Formula: Ag5SbS4
Stibnite
Formula: Sb2S3
'Stilbite subgroup'
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed.
Stromeyerite
Formula: AgCuS
Sylvanite
Formula: (Au,Ag)2Te4
Szomolnokite
Formula: FeSO4 · H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Talc
Formula: Mg3Si4O10(OH)2
Tellurobismuthite
Formula: Bi2Te3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
'Tennantite'
Formula: Cu6(Cu4X2)As4S12S
Localities: Reported from at least 14 localities in this region.
Tenorite
Formula: CuO
Localities: Reported from at least 8 localities in this region.
Tetradymite
Formula: Bi2Te2S
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"; Genth F A (1868) Contributions to mineralogy - No. VII, The American Journal of Science and Arts, 95, 305-321; USGS Bull 574
'Tetrahedrite'
Formula: Cu6(Cu4X2)Sb4S13
Localities: Reported from at least 38 localities in this region.
Titanite
Formula: CaTi(SiO4)O
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: van Laer, in preparation
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Turquoise
Formula: Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Uraninite
Formula: UO2
Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Voltaite
Formula: K2Fe2+5Fe3+3Al(SO4)12 · 18H2O
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
'Wad'
Localities: Reported from at least 6 localities in this region.
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Wittichenite
Formula: Cu3BiS3
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Rocks & Min.: 16:247.
Wollastonite
Formula: CaSiO3
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Wulfenite
Formula: Pb(MoO4)
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed
Wurtzite
Formula: (Zn,Fe)S
Localities: Reported from at least 6 localities in this region.
Wüstite
Formula: FeO
Reference: Kaplan, Jenna(2016) "Mineralogy and environmental geochemistry of slag in Lower Area One, Butte, Montana."
Zircon
Formula: Zr(SiO4)
Reference: Geology and Ore Deposits of Butte District, Montana, W. Weed.
Zoisite
Formula: Ca2Al3[Si2O7][SiO4]O(OH)
Zunyite
Formula: Al13Si5O20(OH,F)18Cl
Reference: The Mineralogy of The Butte District, Montana; Guilbert and Zeihen

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
'Electrum'1.AA.05(Au,Ag)
Gold1.AA.05Au
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Aikinite2.HB.05aPbCuBiS3
Alabandite2.CD.10MnS
Arsenopyrite2.EB.20FeAsS
Betekhtinite2.BE.05(Cu,Fe)21Pb2S15
Bornite2.BA.15Cu5FeS4
Canfieldite2.BA.70Ag8SnS6
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Colusite (TL)2.CB.30Cu13VAs3S16
Covellite2.CA.05aCuS
Digenite2.BA.10Cu9S5
Djurleite2.BA.05Cu31S16
Enargite2.KA.05Cu3AsS4
Furutobeite2.BE.10(Cu,Ag)6PbS4
Galena2.CD.10PbS
Goldfieldite2.GB.05(Cu102)Te4S12S
Greenockite2.CB.45CdS
Jalpaite2.BA.45Ag3CuS2
Larosite2.LB.35(Cu,Ag)21PbBiS13
Luzonite2.KA.10Cu3AsS4
Marcasite2.EB.10aFeS2
Mawsonite2.CB.20Cu6Fe2SnS8
Molybdenite2.EA.30MoS2
Pearceite2.GB.15[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]
Polybasite2.GB.15[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Proustite2.GA.05Ag3AsS3
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Seligmannite2.GA.50PbCuAsS3
Sphalerite2.CB.05aZnS
var: Cleiophane2.CB.05aZnS
Stephanite2.GB.10Ag5SbS4
Stibnite2.DB.05Sb2S3
Stromeyerite2.BA.40AgCuS
Sylvanite2.EA.05(Au,Ag)2Te4
Tellurobismuthite2.DC.05Bi2Te3
'Tennantite'2.GB.05Cu6(Cu4X2)As4S12S
Tetradymite2.DC.05Bi2Te2S
'Tetrahedrite'2.GB.05Cu6(Cu4X2)Sb4S13
Wittichenite2.GA.20Cu3BiS3
Wurtzite2.CB.45(Zn,Fe)S
Group 3 - Halides
Bromargyrite3.AA.15AgBr
Chlorargyrite3.AA.15AgCl
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Arsenolite4.CB.50As2O3
Böhmite4.FE.15AlO(OH)
Cassiterite4.DB.05SnO2
Corundum4.CB.05Al2O3
var: Sapphire4.CB.05Al2O3
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Cuprite4.AA.10Cu2O
Curite4.GB.55Pb3(UO2)8O8(OH)6 · 3H2O
Ferberite4.DB.30FeWO4
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Hübnerite4.DB.30MnWO4
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Manganite4.FD.15Mn3+O(OH)
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Ramsdellite4.DB.15aMn4+O2
Romanèchite4.DK.10(Ba,H2O)2(Mn4+,Mn3+)5O10
Rutile4.DB.05TiO2
Spinel4.BB.05MgAl2O4
Tenorite4.AB.10CuO
Uraninite4.DL.05UO2
Wüstite4.AB.25FeO
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
var: Manganoan Calcite5.AB.05(Ca,Mn)CO3
Cerussite5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Malachite5.BA.10Cu2(CO3)(OH)2
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
var: Manganoan Siderite5.AB.05(Fe,Mn)CO3
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Anglesite7.AD.35PbSO4
Anhydrite7.AD.30CaSO4
Antlerite7.BB.15Cu3(SO4)(OH)4
Baryte7.AD.35BaSO4
Boothite7.CB.35CuSO4 · 7H2O
Brochantite7.BB.25Cu4(SO4)(OH)6
Caledonite7.BC.50Pb5Cu2(SO4)3(CO3)(OH)6
Chalcanthite7.CB.20CuSO4 · 5H2O
Copiapite7.DB.35Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Coquimbite7.CB.55AlFe3(SO4)6(H2O)12·6H2O
Epsomite7.CB.40MgSO4 · 7H2O
Ferrimolybdite7.GB.30Fe2(MoO4)3 · nH2O
Goslarite7.CB.40ZnSO4 · 7H2O
Gypsum7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Linarite7.BC.65PbCu(SO4)(OH)2
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
var: Cuprian Melanterite7.CB.35(Fe,Cu)SO4 · 7H2O
Montanite (TL)7.CD.60Bi2(TeO6) · 2H2O
Natrojarosite ?7.BC.10NaFe3(SO4)2(OH)6
Pickeringite7.CB.85MgAl2(SO4)4 · 22H2O
Powellite7.GA.05Ca(MoO4)
Römerite7.CB.75Fe2+Fe3+2(SO4)4 · 14H2O
Scheelite7.GA.05Ca(WO4)
Szomolnokite7.CB.05FeSO4 · H2O
Voltaite7.CC.25K2Fe2+5Fe3+3Al(SO4)12 · 18H2O
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Beraunite8.DC.27Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Chalcosiderite8.DD.15CuFe3+6(PO4)4(OH)8 · 4H2O
Cornwallite8.BD.05Cu5(AsO4)2(OH)4
Hinsdalite8.BL.05PbAl3(PO4)(SO4)(OH)6
Libethenite8.BB.30Cu2(PO4)(OH)
Pseudomalachite8.BD.05Cu5(PO4)2(OH)4
Pyromorphite8.BN.05Pb5(PO4)3Cl
Turquoise8.DD.15Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Wavellite8.DC.50Al3(PO4)2(OH,F)3 · 5H2O
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Allophane9.ED.20(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Andalusite9.AF.10Al2(SiO4)O
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Beryl9.CJ.05Be3Al2(Si6O18)
Chamosite9.EC.55(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
var: Thuringite9.EC.55(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Clintonite9.EC.35Ca(Mg,Al)3(Al3SiO10)(OH)2
Danburite9.FA.65CaB2Si2O8
Dickite9.ED.05Al2(Si2O5)(OH)4
Diopside9.DA.15CaMgSi2O6
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fayalite9.AC.05Fe2+2SiO4
Forsterite9.AC.05Mg2SiO4
Grossular9.AD.25Ca3Al2(SiO4)3
'Halloysite'9.ED.10Al2(Si2O5)(OH)4
Hedenbergite9.DA.15CaFe2+Si2O6
Helvine9.FB.10Be3Mn2+4(SiO4)3S
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Kirschsteinite9.AC.05CaFe2+SiO4
Microcline9.FA.30K(AlSi3O8)
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Orthoclase9.FA.30K(AlSi3O8)
Palygorskite9.EE.20(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Petedunnite9.DA.15Ca(Zn,Mn2+,Mg,Fe2+)Si2O6
Pyrophyllite9.EC.10Al2Si4O10(OH)2
Rhodonite9.DK.05Mn2+SiO3
Sanidine9.FA.30K(AlSi3O8)
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Sepiolite9.EE.25Mg4(Si6O15)(OH)2 · 6H2O
Talc9.EC.05Mg3Si4O10(OH)2
Titanite9.AG.15CaTi(SiO4)O
Topaz9.AF.35Al2(SiO4)(F,OH)2
Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Wollastonite9.DG.05CaSiO3
Zircon9.AD.30Zr(SiO4)
Zoisite9.BG.10Ca2Al3[Si2O7][SiO4]O(OH)
Zunyite9.BJ.55Al13Si5O20(OH,F)18Cl
Unclassified Minerals, Rocks, etc.
''-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Andorite'-AgPbSb3S6
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chabazite'-
'Chlorite Group'-
'Clinopyroxene Subgroup'-
'Copper Pitch Ore'-
'Copper Stain'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Garnet Group'-X3Z2(SiO4)3
'Glass'-
'Heulandite subgroup'-
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-
'Psilomelane'-Mn, O
'Pyroxene Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Stilbite subgroup'-
'Tourmaline'-