Mine detail: Dewe*

Previously called 'DeweyBig RedEagle Rock'

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Location

Lat / long: 38.79821, -122.82914

Resource(M)

Primary: Mercury
Ore: Cinnabar, Mercury
Orebody form: LENSES
Discovery year: 1940

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
Production years: 1942 - 1947

Geology

Host type:Serpentinite
Structure:Serpentine - Sandstone Contact
Alteration processes:Silica Carbonate Alteration Of Serpentine

References

MRDSM055700
DEP10040825
Reference{Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Deposit:: HONKE, M. T., JR. AND VER PLANCK, W. E., JR., 1950, MINES AND MINERAL RESOURCES OF SONOMA, COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 46, P. 98 - 105}{Deposit:: BAILEY, E. H., 1946, QUICKSILVER DEPOSITS OF THE WESTERN MAYACMAS DISTRICT, SONOMA COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 199 - 230}{Production:: USBM DATA}
ReporterPeterson, Jocelyn A.