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East Colusa Mine, Berkeley Pit, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USAi
Regional Level Types
East Colusa MineMine
Berkeley PitPit
Butte- not defined -
Butte District (Summit Valley District)Mining District
Silver Bow Co.County
MontanaState
USACountry

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Latitude & Longitude (WGS84): 46° 1' 28'' North , 112° 30' 24'' West
Latitude & Longitude (decimal): 46.02444,-112.50667
GeoHash:G#: c2pvzf7pu
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Walkerville700 (2017)2.5km
Butte34,190 (2011)3.2km
Butte-Silver Bow (Balance)33,525 (2013)17.9km
Warm Springs3,000 (2013)27.6km
Basin212 (2011)33.2km


Consumed by the Berkeley Pit

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

'Apatite'
Reference: Mineralogical Record 33:1
Baryte
Formula: BaSO4
Reference: Mineralogical Record 33:1
Bornite
Formula: Cu5FeS4
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974
Chalcocite
Formula: Cu2S
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcopyrite
Formula: CuFeS2
Reference: Rob Lavinsky photo
Colusite (TL)
Formula: Cu13VAs3S16
Type Locality:
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.
Covellite
Formula: CuS
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974
Enargite
Formula: Cu3AsS4
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Pyrite
Formula: FeS2
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Rhodochrosite
Formula: MnCO3
Reference: Rocks & Min.:61:12.
Sphalerite
Formula: ZnS
Reference: Rob Lavinsky photo

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Colusite (TL)2.CB.30Cu13VAs3S16
Covellite2.CA.05aCuS
Enargite2.KA.05Cu3AsS4
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Rhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø > 4
Colusite (TL)3.1.1.1Cu13VAs3S16
ø = 4
Enargite3.2.1.1Cu3AsS4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Rhodochrosite14.1.1.4MnCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Apatite'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
CCarbon
C RhodochrositeMnCO3
OOxygen
O QuartzSiO2
O RhodochrositeMnCO3
O BaryteBaSO4
O Limonite(Fe,O,OH,H2O)
SiSilicon
Si QuartzSiO2
SSulfur
S ColusiteCu13VAs3S16
S CovelliteCuS
S EnargiteCu3AsS4
S ChalcociteCu2S
S BorniteCu5FeS4
S PyriteFeS2
S BaryteBaSO4
S SphaleriteZnS
S ChalcopyriteCuFeS2
VVanadium
V ColusiteCu13VAs3S16
MnManganese
Mn RhodochrositeMnCO3
FeIron
Fe BorniteCu5FeS4
Fe PyriteFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe ChalcopyriteCuFeS2
CuCopper
Cu ColusiteCu13VAs3S16
Cu CovelliteCuS
Cu EnargiteCu3AsS4
Cu ChalcociteCu2S
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ColusiteCu13VAs3S16
As EnargiteCu3AsS4
BaBarium
Ba BaryteBaSO4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Holocene
0 - 0.0117 Ma



ID: 2085655
Tailings, mine dumps, and slag piles

Age: Anthropocene (0 - 0.0117 Ma)

Description: tailings, mine dumps, slag

Lithology: Sand, gravel

Reference: Zientek, M.L., P.D. Derkey, R.J. Miller, J.D. Causet et al. Spatial Databases for the Geology of the Northern Rocky Mountains - Idaho, Montana, and Washington. U.S. Geological Survey Open-File Report 2005-1235 Version 1.0. [25]

Cretaceous
66 - 145 Ma



ID: 3187684
Mesozoic intrusive rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Cretaceous
66 - 145 Ma



ID: 2984479
Granitic rock

Age: Cretaceous (66 - 145 Ma)

Comments: Original map source: Vuke, S.M., Porter, K.W., Lonn, J.D., and Lopez, D.A., 2007, Geologic Map of Montana - Compact Disc: Montana Bureau of Mines and Geology: Geologic Map 62-C, 73 p., 2 sheets, scale 1:500,000. This map was digitized in 2012 as a result of a contract betwe

Lithology: Major:{granitic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Geology and Ore Deposits of the Butte District, Montana; W. Weed 1912


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