Mine detail: Sierra Iron Mine

Previously called 'Lake Hawley and Spencer Lake Deposit'

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Location

Lat / long: 39.69766, -120.7152

Resource(M)

Primary: Iron
Ore: Magnetite
Gangue: Calcite, Talc
Orebody form: IRREGULAR TO LENTICULAR

Production

Operation type: Unknown
Deposit type: Contact Metasomatic
Production size: None
Development status: Past Producer

Geology

Associated type:Quartz Monzonite
Structure:Folds And Faults
Alteration processes:Dynamothermally Metamorphosed

References

MRDSM024297
DEP10098348
Reference{Deposit:: DURRELL, C. AND PROCTOR, P.D., 1948; IRON-ORE DEPOSITS NEAR LAKE HAWLEY AND SPENCER LAKES, SIERRA COUNTY, CALIFORNIA, CA. DIV. OF MINES BULL. 129, P. 167-192}{Reserve-Resource:: DURRELL AND PROCTOR, 1948}
ReporterFraticelli, L. A. (Albers, J.)