The James-Corbett Mine is a asbestos and chromium mine located in Fresno county, California.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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James-Corbett Mine MRDS details
Site Name
Primary: James-Corbett Mine
Secondary: Corbett-Byles Mine
Commodity
Primary: Asbestos
Primary: Chromium
Tertiary: Iron
Location
State: California
County: Fresno
District: New Idria Area
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Keith Jones, John Russell
Owner Name: Mareco Mining Division Of Marmac Resources Co., Los Angeles, Ca
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1951
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Physiographic Detail: Diablo Range
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Serpentinization
Rocks
Not available
Analytical Data
Analytical Data: FE 2.6. MILLING ORE IS 11% CR2O3.
Analytical Data: LUMP ORE AVERAGES 44.5% CR2O3, 9.1% FE, CR: FE 3.4. CONCENTRATES AVERAGE 46.9% CR2O3, 12.4% FE, CR
Materials
Ore: Uvarovite
Ore: Chromite
Gangue: Magnetite
Gangue: Magnesite
Gangue: Calcite
Gangue: Talc
Comments
Comment (Geology): SERPENTINE, IN FAULT CONTACT WITH SURROUNDING ROCKS, STRIKES N72E AND DIPS 60S. MINE ON SE BORDER OF NW TRENDING, E111PTICALLY SHAPED SERPENTINE MASS, 19KM BY 4KM, ALONG CREST OF DIABLO RANGE.
Comment (Deposit): ORE BODY WITH DIMENSIONS 10M X 10M X 5M, LARGE ENOUGH TO ACCOUNT FOR MINE'S TOTAL PRODUCTION, ORE BODY ASSUMED TO HAVE A VERTICAL, PIPE-LIKE GEOMETRY.
References
Reference (Deposit): STINSON, M.C., 1976, MINERAL PROPERTY REPORT, CDMG UNPUBLISHED REPORT.
Reference (Deposit): CDMG SR 71, 19 P.
Reference (Deposit): USBM MINERAL YEARBOOK, V. 3, 1954, P. 207; 1955, P. 210
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.