Mine detail: Jay Gould Mine

Previously called 'Stemple Mine'

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Location

Lat / long:

46.88184, -112.45951

Resource(M)

Primary:	Silver, Gold
Secondary:	Copper, Iron
Ore:	Argentite, Chalcopyrite, Electrum, Gold, Malachite
Gangue:	Calcite, Quartz
Discovery year:	1884

Production

Operation type:	Underground
Deposit type:	Polymetallic veins
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Empire Formation;Spokane Formation
Host type:	Shale,Argillite
Associated rock:	Granite Peak Stock
Associated type:	Granite
Structure:	Boulder Batholith, Granite Peak Stock
Tectonic:	Cordilleran Miogeosyncline
Alteration processes:	Sericitization

References

MRDS	W014721
DEP	10071377
Reference	{Deposit:: USGS BULL 842, P. 80-4.}{Deposit:: MBMG BULL 100, P. 14.}{Production:: PARDEE & SCHRADER, 1933, U.S.G.S. BULL. 842.; MBMG MEM 20, USBM MINERALS YEARBOOKS}
Reporter	Mlynarczyk, Meg S., Wise, Kristine K. (Elliott, James E.)