California · Del Norte County
Past Producer

Big Boy Cinnabar Group

Del Norte County, California, United States
Mercury
⌖ Show on mapUSGS source ↗
Description

John Griffen

Commodities
PrimaryMercury
Commodity typeM
Deposit
Model179: Silica-carbonate Hg
Deposit sizeS
Orebody formFRACTURE FILLING
Materials
Ore mineralsCinnabar
GangueKaolinite, Limonite, Sericite
Geology
Host rockDiorite
Tectonic settingKlamath Mountains
AlterationPropylitization
Economic & production
Development statusPast Producer
Production yearsPRIOR TO 1933
Discovery year1919
Identification
Deposit ID10040652
MRDS IDM055506
RegionNA
Data scoreB
Coordinates41.99426, -123.89699
References
BAILEY, E.H., U.S. GEOLOGICAL SURVEY, PERSONAL FILES.HOLMES, G.W., JR., 1965, MERCURY IN CALIFORNIA, IN MERCURY POTENTIAL OF THE UNITED STATES: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8252, P. 169, 198.O'BRIEN, J.C., 1952, MINES AND MINERAL RESOURCES OF DEL NORTE COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 48, NO. 4, P. 309.MAXSON, J.H., 1933, ECONOMIC GEOLOGY OF PORTIONS OF DEL NORTE AND SISKIYOU COUNTIES, NORTHWESTERNMOST CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 29, P. 157-158.