Montana · Silver Bow County
Past Producer
West Grey Rock Mine
Silver Bow County, Montana, United States
Copper
Silver
Zinc
Arsenic
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USGS source ↗
Commodities
Primary
Copper, Silver
Secondary
Zinc
Tertiary
Arsenic
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Materials
Ore minerals
Bornite, Chalcocite, Covellite, Enargite, Sphalerite
Gangue
Pyrite, Quartz
Geology
Host rock
Quartz Monzonite
Associated rock
Quartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
Structure
Boulder Batholith
Economic & production
Development status
Past Producer
Identification
Deposit ID
10012441
MRDS ID
D008075
Region
NA
Data score
B
Coordinates
46.02629, -112.52589
References
USGS PP 74, P. 184, PL. 10