Mine detail: Seafoam Mine

Previously called 'Montana MineProvidence Group'

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Location

Lat / long:

44.52928, -115.12905

Resource(M)

Primary:	Gold
Tertiary:	Copper, Silver, Zinc, Lead
Ore:	Chalcopyrite, Galena, Sphalerite
Gangue:	Pyrite, Quartz
Orebody form:	STRINGERS, VEINLETS, LENTICULAR, EN ECHELON

Production

Operation type:	Underground
Production size:	Small
Development status:	Past Producer
First production started:	1925

Geology

Host type:	Quartz Monzonite,Diorite,Lamprophyre
Associated rock:	Idaho Batholith-Quartz Monzonite, Granodiorite;Dikes-Lamprophyre
Associated type:	Quartz Monzonite,Diorite,Lamprophyre
Structure:	5 Ft Leached Zone; Small Scale Post - Mineral Faulting
Alteration processes:	Silicification; Sericitization; Leaching; Kaolinization

References

MRDS	W013929
MAS	160370247
DEP	10070827
Reference	{Deposit:: Treves, Samuel B., And Melear, John D., 1953, The Geology And Ore Deposits Of The Seafoam Mining District, Custer County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 96, 19 P}{Deposit:: 1953 Geolmap Idaho Bureau Of Mines And Geology Pamphlet 9}{Deposit:: Bell, R. N., 1919, Twenty-First Annual Report Of The Mining Industry Of Idaho, P. 70-71. (See Also Annual Reports For The Years 1926 And 1927).}{Production:: Treves, S. B., And Melear, J. D., 1953, Idaho Bureau Of Mines And Geol. Pamphlet 96, 19 P.}
Reporter	Miller, Pat J., Lowe, Nathan T.