Mine detail: La Joya

Previously called ''

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Location

Lat / long: 38.43933, -122.47217

Resource(M)

Primary: Mercury
Ore: Cinnabar, Mercury
Gangue: Chalcedony, Pyrite, Quartz
Orebody form: PODS
Discovery year: 1865

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
Production years: 1873, 1915 - 1918, 1929 - 1934, 1936 - 1939, 1942

Geology

Host type:Serpentinite
Associated type:Volcanic Rock (Aphanitic)
Alteration processes:Silica Carbonate Alteration Of Serpentine

References

MRDSM055733
DEP10040858
Reference{Deposit:: FIX, P. F. AND SWINNEY, C. M., 1949, QUICKSILVER DEPOSITS OF THE OAKVILLE DISTRICT, NAPA COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 45, P. 31 - 46}{Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Deposit:: RANSOME, A. L. AND KELLOGG, J. L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 35, P. 353 - 486}{Deposit:: 5) BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.}{Production:: USBM DATA}
ReporterPeterson, Jocelyn A.