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Mine detail: Colusa Mine
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North America
United States
Montana
Silver Bow
Previously called 'East Colusa Pit'
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Location
Lat / long:
46.02407, -112.50783
Resource(M)
Primary:
Copper
Secondary:
Silver
Ore:
Chalcocite, Enargite
Gangue:
Limonite, Pyrite, Quartz
Orebody form:
THE VEIN CONTINUES W BEYOND THE GAMBETTA FAULT AS THE SHANNON VEIN. THE GRANITE ACCOMPANYING THE LODE IS GENERALLY WELL SERICITIZED AND PEPPERED WITH PYRITE
Production
Operation type:
Unknown
Production size:
Yes
Development status:
Past Producer
Geology
Host type:
Quartz Monzonite,Granite
Associated rock:
Boulder Batholith
Associated type:
Quartz Monzonite,Granite
Structure:
Boulder Batholith, N 65 E
References
MRDS
DC10804
DEP
10019551
Reference
{Deposit:: USGS PP 74, PL. X, P. 203.}{Deposit:: MBMG BULL 10, P. 60.}{Deposit:: USGS-USBM MINERAL YEARBOOKS 1955, 1956}{Production:: USGS-USBM MINERAL YEARBOOK; USGS PP 74}
Reporter
Unknown, Wise, Kristine K. (Elliott, James E.)