Mine detail: Quail Hill

Previously called 'Eagle'

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Location

Lat / long:

37.96102, -120.75018

Resource(M)

Primary:	Copper, Zinc
Secondary:	Gold, Silver, Lead
Ore:	Chalcopyrite, Pyrite, Sphalerite
Gangue:	Barite, Calcite, Chlorite, Quartz
Orebody form:	POD/LENS

Production

Operation type:	Unknown
Deposit type:	Replacement
Production size:	Small
Development status:	Past Producer
Production years:	1888 - 1916 , 1917 - 1945

Geology

Host type:	Greenstone,Schist,Felsic Volcanic Rock
Associated type:	Diabase
Structure:	Folds, Faults
Alteration processes:	Sericitization, Kaolinization, Silicification, And Pyritization.

References

MRDS	M005704
DEP	10102614
Reference	{Deposit:: CLARK, W. B. AND LYDON, P. A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA; COUNTY REPORT 2 ; CALIF. DIV. MINES AND GEOLOGY, P. 31 - 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. 112 - 122 .}{Production:: HEYL, G. R., 1948 , P. 114 (SEE REF.)}
Reporter	Gere, W., Fraticelli, L. A. (Albers, J.)