Mine detail: East Grey Rock Mine

Previously called ''

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Location

Lat / long:

46.0249, -112.52422

Resource(M)

Primary:	Copper
Secondary:	Silver, Zinc
Tertiary:	Arsenic
Ore:	Bornite, Chalcocite, Chalcopyrite, Covellite, Enargite, Sphalerite
Gangue:	Pyrite, Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Quartz Monzonite
Associated rock:	Butte Quartz Monzonite (Boulder Batholith)
Associated type:	Quartz Monzonite
Structure:	Boulder Batholith
Alteration processes:	Hydrothermal

References

MRDS	D008077
DEP	10012442
Reference	USGS PP 74, P. 181-82, 183-84, PL. X
Reporter	Wise, Kristine K. (Elliott, James E.)