Mine detail: Little Gem

Previously called ''

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Location

Lat / long:

40.31685, -116.69982

Resource(M)

Primary:	Copper
Secondary:	Gold, Silver, Lead, Arsenic
Ore:	Bornite, Cerargyrite, Chalcopyrite, Galena, Gold, Malachite
Gangue:	Calcite, Limonite, Quartz
Orebody form:	TABULAR
Discovery year:	1907

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Medium
Development status:	Past Producer
First production started:	1907

Geology

Host rock:	Valmy Formation;Valmy Formation
Host type:	Greenstone
Associated type:	Diorite
Structure:	Deposit In Upper Plate Of Roberts Mtn Thrust, High Angle Basin & Range Period Faults, Normal Faults
Alteration processes:	Country Rock Argillized Outwards From Stock

References

MRDS	M232516
DEP	10044891
Reference	{Deposit:: STAGER, H.K. (1977) GEOLOGY & MINERAL RESOURCES OF LANDER CO NEV, N.B.M. BULL 88}{Deposit:: USBM (WINNEMUCCA) MILS NO. 87, REFERENCE NO. 3201500121}{Deposit:: EMMONS, W.H. (1910) RECONNAISSANCE OF MINING DISTRICTS IN ELKO, LANDER, & EUREKA COS., USGS BULL 408}{Deposit:: WRUCKE, C.T. (1974) GEOLOGIC MAP OF THE TENABO AREA, LANDER CO NEV, USGS MAP MF-647}
Reporter	Kirkham, Richard A.