Mine detail: Big Eight Mine

Previously called 'Cabinet Lease'

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Location

Lat / long:

48.43737, -115.99243

Resource(M)

Primary:	Lead, Zinc
Secondary:	Silver, Copper, Gold
Tertiary:	Cobalt
Ore:	Chalcopyrite, Galena, Pyrite, Pyrrhotite, Sphalerite
Gangue:	Actinolite, Calcite, Chlorite, Garnet
Discovery year:	1925

Production

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

Geology

Host rock:	Prichard Formation, Argillite, & Quartzite
Host type:	Diorite,Quartzite
Associated rock:	Snowstorm Dike, Metadiorite;Dry Creek Stock, Quartz Monzonite
Associated type:	Quartz Monzonite,Diorite
Structure:	Spar Lake Syncline, Leonia Fault, Local Post-Ore Fault Striking Nw, Dipping 25 Deg Ne Displaced Major Vein To Nw
Tectonic:	Cordilleran Miogeosyncline

References

MRDS	W014735
DEP	10071388
Reference	{Deposit:: JOHNS, W. M., 1970, GEOLOGY & MINERAL DEPOSITS - LINCOLN & FLATHEAD CO, MT. BUREAU MINES & GEOLOGY BULL. 79.}{Deposit:: GIBSON, R., 1948, GEOLOGY & ORE DEPOSITS - LIBBY QUADRANGLE, U.S. GEOLOGICAL SURVEY 956.}{Production:: JOHNS, 1970, MBMG BULL. 79.}
Reporter	Mlynarczyk, Meg S.