Mine detail: Star & Excelsior Mine

Previously called ''

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Location

Lat / long:

37.91491, -120.72879

Resource(M)

Primary:	Copper
Tertiary:	Gold, Zinc
Ore:	Chalcocite, Chalcopyrite, Chrysocolla, Malachite, Pyrite, Sphalerite
Gangue:	Barite

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host type:	Greenstone
Alteration processes:	Kaolinization, Pyritization, Silicification

References

MRDS	M005719
DEP	10028629
Reference	{Deposit:: CLARK, W. B. AND LYDON, P. A., 1962 , MINES AND MINERALS RESOURCES OF CALAVERAS COUNTY, CALIFORNIA; COUNTY REPT. 2 ; CALIF. DIV. MINES AND GEOLOGY, P. 32 .}{Deposit:: HEYL, G. R., 1948 , ZINC - COPPER MINES OF THE QUAIL HILL AREA, CALAVERAS COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 125 - 126 .}
Reporter	Gere, W., Fraticelli, L. A. (Albers, J.)