Montana · Granite County
Past Producer

Potosi

Granite County, Montana, United States
SilverCopperGold
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver, Copper
SecondaryGold
Commodity typeM
Deposit
Deposit sizeS
Materials
Ore mineralsChalcopyrite, Gold
GangueCalcite, Pyrite, Sericite
Geology
Host rockDiorite
Associated rockDiorite · Royal Stock
StructureRoyal Stock
AlterationSericitization
Economic & production
Development statusPast Producer
Production years1961
Identification
Deposit ID10019273
MRDS IDDC09358
RegionNA
Data scoreC
Coordinates46.43517, -113.06508
References
USGS PP 78, P. 251.MBMG BULL 58, P. 17.