Mine detail: Copsey Claims

Previously called 'ManzanitaMintUncle Josh Claims'

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Location

Lat / long:

38.83821, -122.64163

Resource(M)

Primary:	Chromium
Ore:	Chromite
Orebody form:	LENSE, POD OTHER STRINGERS

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1917

Geology

Host type:

Serpentinite

References

MRDS	M100305
DEP	10043527
Reference	{Deposit:: DOW, D.H. AND THAYER, T.P., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134, PART 2, CHAPT. 1, P 11,12,32.}{Deposit:: LOGAN, C.A., 1918, CHROMIUM IN BRADLEY, W.W., AND OTHERS, MANGANESE AND CHROMIUM IN CALIF.: CALIF. STATE MINING BUREAU BULLETIN NO. 76, P. 148,149,219.}
Reporter	Oster, Karel L. (Albers, John P.)