Mine detail: Ivanhoe

Previously called 'PattenMt. St. Helena'

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Location

Lat / long: 38.67071, -122.51274

Resource(M)

Primary: Mercury
Ore: Cinnabar
Gangue: Pyrite
Discovery year: 1900

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
Production years: 1930 - 1939

Geology

Host type:Clastic Sedimentary Rock
Associated type:Basalt
Alteration processes:Kaolinized Basalt

References

MRDSM055664
DEP10040792
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:: DAVIS, F.F., 1948, MINES AND MINERAL RESOURCES OF NAPA COUNTY, CALIF.: CJMG, V. 44, P. 413-414}{Deposit:: 5) RANSOME, A.L. AND KELLOGG, J.L., 1939 QUICKSILVER RESOURCES OF CALIFORMIA: CJMG, V. 35, P. 353-558}{Production:: USBM DATA}
ReporterPeterson, Jocelyn A.