Montana · Missoula County
Past Producer

Cape Nome Mine

Missoula County, Montana, United States
CopperSilverGoldLeadBarium-BariteAntimonyArsenic
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper, Silver
SecondaryGold, Lead
TertiaryBarium-Barite, Antimony, Arsenic
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formSHOOTS OR LENSES
Ore controlMineralization Localized Along Large Continuous Shear Zone - Concentrated In Areas Of Maximum Parallel Fracturing
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Enargite, Galena, Gold, Malachite, Tetrahedrite
GangueBarite, Limonite, Pyrite, Quartz, Siderite
Geology
Host rockDiorite,Schist · Pilcher Quartzite;Garnet Range Formation
Associated rockDiorite · Clinton Stock
StructureBearmouth Overthrust, Series Of North-Striking Faults, Clinton Stockclinton Stock
Tectonic settingCordilleran Miogeosyncline
AlterationOxidation To Deepths Of 100-300 Ft
Economic & production
Development statusPast Producer
Discovery year1897
Identification
Deposit ID10071384
MRDS IDW014729
Alternate namesBullion, Moose
RegionNA
Data scoreB
Coordinates46.78933, -113.654
References
USGS BULL 660, P. 227-8.MBMG BULL 30, P. 32.MBMG BULL 8, P. 9, 12, 35, PL. 6.MBMG BULL 82,MBMG BULL 40,SAHINEN, 1957, M.B.M.G. BULL. 8.