Commodities
PrimaryMercury
Commodity typeM
Deposit
Deposit sizeM
WorkingsUnderground
Orebody formTABULAR, PIPES
Ore controlLithologic Contacts, Local Fracturing.
Materials
Ore mineralsCinnabar, Mercury, Metacinnabar
GangueChalcedony, Dolomite, Pyrite, Quartz
Geology
Host rockSerpentinite,Clastic Sedimentary Rock · Franciscan Complex
Associated rockGreenstone · Franciscan Complex
StructureMayacmas Anticline Trending Nw, Local Fractures, Serpentine - Sediment Contact
AlterationSilica Carbonate Alteration Of Serpentine, Kaolinization Of Sediments
Economic & production
Development statusPast Producer
First production1887
Discovery year1875
Identification
Deposit ID10040796
MRDS IDM055669
Alternate namesGreat Eastern, Bradford, Mirabel
RegionNA
Data scoreB
Coordinates38.7, -122.60111
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. 42, P. 231 - 286AVERILL, C.V., 1947, MINES AND MINERAL RESOURCES OF LAKE COUNTY, CALIF.: CJMG, V. 43, no. 1, P. 15-38.BRADLEY, W.W., 1918 QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-558ROSS, C.P., 1940, QUICKSILVER DEPOSITS OF THE MAYACMAS AND SULFUR BANK DISTRICTS, CALIF.: USGS BULL. 922-B, P. 327-353USBM DATA