Mine detail: Dufrene

Previously called ''

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Location

Lat / long: 38.34184, -120.86769

Resource(M)

Tertiary: Manganese
Ore: Psilomelane, Pyrolusite, Rhodonite
Gangue: Magnetite

Production

Operation type: Unknown
Production size: None
Development status: Prospect

Geology

References

MRDSM004877
DEP10097002
Reference{Deposit:: CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P.268, PL. 1}{Deposit:: DOM BULL. 152, P.28}
ReporterGere, W., Von Dohlen, E.; Albers, J.