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

MRDSM100305
DEP10043527
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.}
ReporterOster, Karel L. (Albers, John P.)