The Coast Manganese is a manganese mine located in Stanislaus 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
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.
Coast Manganese MRDS details
Site Name
Primary: Coast Manganese
Commodity
Primary: Manganese
Location
State: California
County: Stanislaus
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: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: AVERAGE GRADE 30 TO 35 PERCENT MANGANESE
Materials
Ore: Psilomelane
Comments
Comment (Geology): GEOL.DESC: SHALY BLACK OXIDE ORE BED 1 1/2 FT. THICK IS ENCLOSED IN MASSIVE RED AND WHITE CHERT, WHICH IS INTERBEDDED IN THIN-BEDDED RED AND GRAY TO GREEN SHALY CHERT AND SHALE. ORE BED STRIKES E TO N 45 E, DIPS 45 TO 60 N. W., AND IS LOCALLY WARPED AND WRINKLED. THE BED PINCHES AND SWELLS FROM 1 TO 2 FT. THICK, AND CONSISTS OF BLACK OXIDE, THE HARD PSILOMELANE TYPE AND SOFT BLACK OXIDE. IT CONTAINS PATCHES OF LIMONITE STAINED CELLULAR SILICA.
Comment (Location): LOCATION APPROXIMATE, UTM APPROX
References
Reference (Deposit): D.O.M. BULL. 152 1950 P. 290
Reference (Deposit): D.O.M. BULL. 125 1943 P. 189
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.
