Montana · Granite County
Past Producer
North Star Mine
Granite County, Montana, United States
Copper
Silica
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USGS source ↗
Commodities
Primary
Copper
Secondary
Silica
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Ore control
Gray Sandstone Highly Impregnated With Copper Carbonate (In Tunnel).
Materials
Ore minerals
Copper
Gangue
Pyrite, Quartz
Geology
Host rock
Quartzite · Missoula Group
Economic & production
Development status
Past Producer
Last production
1975
Identification
Deposit ID
10019761
MRDS ID
DC11417
Region
NA
Data score
B
Coordinates
46.43739, -113.23814
References
USGS PP 78, P. 262.MBMG BULL 100, P. 9.MBMG BULL 109, P. 7.USGS-USBM MINERAL YEARBOOKS 1912-1916.USGS PP 78. USGS-USBM MINERAL YEARBOOKS