Commodities
PrimaryMercury
SecondaryChromium
Commodity typeM
Deposit
Deposit sizeM
WorkingsSurface/Underground
Orebody formPIPES
Ore controlContacts, Brecciated Zones
Materials
Ore mineralsCinnabar
GangueCalcite, Dolomite, Opal, Pyrite, Quartz
Geology
Host rockSerpentinite,Chert · Franciscan Complex
Associated rockGabbro
StructureLithologic Contacts, Mayacmas Anticline Trending Nw
Tectonic settingFranciscan Melange
AlterationSilica Carbonate Alteration Of Serpentine, Kaolinized Sediments
Economic & production
Development statusPast Producer
Production years1873 - 1899, 1902 - 1912, 1915 - 1916, 1931 - 1946
First production1873
Identification
Deposit ID10040805
MRDS IDM055680
Alternate namesGreat Western Quicksilver Mine, Laguna Western
RegionNA
Data scoreB
Coordinates38.69194, -122.63083
References
HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252BAILEY, E. H., USGS, PERSONAL FILESYATES, 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. 12, P. 231 - 286RANSOME, A. L. AND KELLOGG, J. L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 35, P. 353 - 486BRADLEY, W. W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CALIF. STATE MINING BUREAU BULL. 78, 389 P.AVERILL, C.V., 1947, MINES AND MINERAL RESOURCES OF LAKE COUNTY, CALIF.: CJMG, V. 43, no. 1, P. 15-381960 DIREXPL UNIVERSAL SILVERU.S. BUREAU OF INDIAN AFFAIRS, 1979, ADMINISTRATIVE REPORT BIA-49, 85 p.