Mine detail: Silver Circle

Previously called 'Queen of the Hills Mine'

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Location

Lat / long:

41.78047, -114.79756

Resource(M)

Primary:	Copper
Secondary:	Silver, Lead, Gold
Ore:	Bornite, Chalcocite, Chalcopyrite, Galena
Gangue:	Actinolite, Axinite, Biotite, Chlorite, Diopside, Garnet, Tremolite
Orebody form:	IRREGULAR TO TABULAR
Discovery year:	1928

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Past Producer
First production started:	1928

Geology

Host type:	Diorite,Limestone
Structure:	Granodiorite Stock With Assoc. Faults, Fractures
Alteration processes:	Silicification, Oxidation

References

MRDS	M233840
DEP	10045942
Reference	{Deposit:: SCHRADER, F.C. (1935) THE CONTACT MINING DISTRICT, NEVADA: USGS BUL. 847-A}{Deposit:: HOPE, R.A. & COATS, R.R. (1976) PRELIM. GEOLOGIC MAP OF ELKO CO., NEV: USGS OFR 76-779}{Deposit:: SMITH, R.M. (1976) MINERAL RESOURCES OF ELKO CO., NEV: USGS OFR 76-56, P 39-45.}{Production:: SCHRADER (1935) P. 31-32}
Reporter	Weimer, Becky S.