The Manga Chrome is a manganese mine located in Nevada 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.
Manga Chrome MRDS details
Site Name
Primary: Manga Chrome
Commodity
Primary: Manganese
Location
State: California
County: Nevada
Land Status
Land ownership: State Forest
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
Not available
Ownership
Owner Name: Dan Duggan; C. C. Stearns, D. E. Owens
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Pennsylvanian
Analytical Data
Not available
Materials
Ore: Rhodochrosite
Ore: Psilomelane
Ore: Pyrolusite
Ore: Manganite
Ore: Rhodonite
Comments
Comment (Location): LOCATED IN W 1/2 SE 1/4 SECTION 17
Comment (Production): IN 1940 THERE WAS 1/2 CARLOAD OR LESS OF MANGANESE OXIDE ORE PILED NEAR HOLES. APPARENTLY MORE WAS MINED AS BULL. 125 STATES PRODUCTION TO BE BETWEEN 150 AND 999 TONS. MINE WAS STILL ACTIVE AT THAT TIME (1943)
Comment (Workings): IN 1940, THREE SHALLOW HOLES . IN 1943 THE CUT WAS 340 FT. LONG, 10 TO 30 FT. DEEP AND OTHER SMALLER CUTS HAD BEEN MADE.
Comment (Geology): GEOL.DESC: MANGANESE ORE BODIES LIE ALONG THE CONTACT BETWEEN CHERTY SLATE AND A HIGHLY ALTERED IGNEOUS ROCKS (GREEN DIABASE, FINE GRAINED DIORITE (METADIORITE?) AND A GREEN PORPHYRITIC ROCK (GREENSTONE)). GENERAL CHERT AND SLATE BELT IS BORDERED BY SERPENTINE ON THE N.E. MOST ORE OCCURS IN A PIPELIKE BODY, AND IN SMALLER LENSES. ORE MINERALS ARE PYROLUSITE, PSILOMELANE, MANGANITE (?), RHODONITE AND RHODOCHROSITE.
References
Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 37, NO. 3, JULY 1941, P. 441
Reference (Deposit): D.O.M. BULL. 125, P. 147; BULL. 152, 1950, PP. 162-4
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 39, NO. 1, 1943, P. 74-75
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.
