California · Calaveras County
Past Producer
Johnstone Mine
Calaveras County, California, United States
Gold
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USGS source ↗
Commodities
Primary
Gold
Commodity type
M
Deposit
Deposit size
S
Orebody form
VEIN
Materials
Ore minerals
Gold
Gangue
Quartz
Geology
Host rock
Diorite
Associated rock
Diorite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10029287
MRDS ID
M006735
Alternate names
L.G. Johnstone Mine
Region
NA
Data score
C
Coordinates
38.40491, -120.54962
References
LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 266LOGAN ( 1936 )