Commodities
PrimaryGold
SecondarySilver
Commodity typeM
Deposit
Deposit sizeL
WorkingsSurface/Underground
Orebody formPINCH & SWELL
Materials
Ore mineralsChalcopyrite, Galena, Gold, Pyrite
GangueAnkerite, Quartz, Talc
Geology
Host rockSchist
Associated rockGabbro,Phyllite,Schist,Amphibolite,Serpentinite,Tuff,Volcanic Breccia (Agglomerate)
StructureRegional Strike Of Country Rock Nw Dips Ne Intense Folding & Faulting
AlterationHydrothermal Altn In Area Causing Mariposite-Ankerite Rocks
Economic & production
Development statusPast Producer
Identification
Deposit ID10028998
MRDS IDM006313
Alternate namesAdelaide, Bright Star, Brown Calaveras, California Ophir, Enterprise, Extension, Finnegan, Independence, Iron Rock, Kentucky, Keystone, Last Chance, Melones, Mexican, Mineral Mountain, Morgan, New Year, Reserve, Releif, Santa Cruz, South Carolina, Stanislaus, Stephens, Union
RegionNA
Data scoreB
Coordinates38.02185, -120.50267
References
CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.; COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P 44 - 50 , 143LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 300CLARK ( 1962 )