The Red Rock is a manganese mine located in Contra Costa county, California at an elevation of 121 feet.
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
Elevation: 121 Feet (37 Meters)
Commodity: Manganese
Lat, Long: 37.92889, -122.42972
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Red Rock MRDS details
Site Name
Primary: Red Rock
Commodity
Primary: Manganese
Location
State: California
County: Contra Costa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Shale
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Shale
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Mineral Paint
Ore: Psilomelane
Comments
Comment (Deposit): ASSOCIATED RED CHERT ONCE MINED AS MINERAL PAINT
Comment (Geology): ORE HOSTED IN FRANCISCAN COMPLEX - L. TO L. ; GEOL.DESC: INTERSHATIFIED LAYERS OF PSILOMELANE (MOSTLY 1/4 TO 1/2 INCH THICK) IN RADIOLARIN CHERT OF FRANCISCAN COMPLEX. SHALE PARTINGS ARE LOCALLY REPLACED BY PSILOMELANE. ORE APPEARS TO BE PRIMARY, CONTEMPORANEOUS WITH DEPOSITION OF SILICA THAT FORMED THE CHERTS.
Comment (Production): PRODUCTION IN 1867 OF POSSIBLE 200 TONS OF ORE FROM THIS DEPOSIT HAS BEEN REPORTED.
References
Reference (Deposit): CALIF. JOUR. VOL. 47, NO. 4, OCT. 1951, P. 575; V. 54, NO. 4, OCT. 1958, P.529, 573.
Reference (Deposit): D.O.M. BULL. 152 1950 P. 50
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.
