Mine detail: Granada

Previously called 'ToyonSwitzer'

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Location

Lat / long: 38.6746, -122.50607

Resource(M)

Primary: Mercury
Ore: Cinnabar
Gangue: Calcite, Pyrite, Quartz
Discovery year: 1929

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
Production years: 1933 - 1937, 1939, 1941 - 1942

Geology

Host type:Siltstone
Structure:Local Fracturing
Alteration processes:Hydrothermal Alteration Of Sediments

References

MRDSM055662
DEP10040791
Reference{Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Deposit:: YATES, R. G. AND HILPERT, L. S., 1946, QUICKSILVER DEPOSITS OF THE EASTERN MAYACMAS DISTRICT, LAKE AND NAPA COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 231 - 286}{Deposit:: RANSOME, A.L. AND KELLOGG. J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-558}{Deposit:: 1955 DIREXPL DMEA , FOUND MINERALIZATION BUT OF UNECONOMIC GRAD}{Production:: USBM DATA}
ReporterPeterson, Jocelyn A.