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Mine detail: Johnstone Mine
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North America
United States
California
Calaveras
Previously called 'L.G. Johnstone Mine'
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Location
Lat / long:
38.40491, -120.54962
Resource(M)
Primary:
Gold
Ore:
Gold
Gangue:
Quartz
Orebody form:
VEIN
Production
Operation type:
Unknown
Production size:
Small
Development status:
Past Producer
Geology
Host type:
Diorite
Associated type:
Diorite
References
MRDS
M006735
DEP
10029287
Reference
{Deposit:: 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. 26}{Production:: LOGAN ( 1936 )}
Reporter
Mateik, R.; Albers, John P.