Mine detail: Beckman

Previously called ''

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Location

Lat / long:

37.62855, -118.52623

Resource(M)

Primary:	Lead, Silver
Secondary:	Copper, Gold
Ore:	Chalcopyrite, Galena, Gold, Malachite
Gangue:	Quartz
Orebody form:	POD LIKE

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Diorite
Associated type:	Diorite
Alteration processes:	Oxidation

References

MRDS	C010571
DEP	10007213
Reference	{Deposit:: GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 57 , NOS 3 AND 4 , P. 555 .}{Deposit:: RINEHART, C. D., AND CROSS, D. C., 1956 , ECONOMIC GEOLOGY OF THE CASA DIABLO QUADRANGLE, CALIFORNIA: SPECIAL REPORT 48 OF THE CALIF. DIVISION OF MINES AND GEOLOGY, P. 8 .}{Production:: GOODWIN ( 1957 )}
Reporter	Nelson, Scott C. (Albers, John, P.)