The Sam Brown World War No. 2 Prospect is a mine located in Humboldt 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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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.
Sam Brown World War No. 2 Prospect MRDS details
Site Name
Primary: Sam Brown World War No. 2 Prospect
Commodity
Tertiary: Manganese
Location
State: California
County: Humboldt
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: ORE GRADE 10 TO 35 PERCENT MANGANESE
Materials
Ore: Rhodonite
Gangue: Malachite
Gangue: Copper
Gangue: Pyrite
Comments
Comment (Location): UTM APPROX
Comment (Production): IT IS ESTIMATED THAT THERE ARE 250 TONS OF ORE IN ONE OUTCROP AND IF THE TWO EXPOSURES ARE PARTS OF THE SAME OREBODY, A MUCH LARGER TONNAGE IS AVAILABLE. A SMALL AMOUNT OF OXIDE ORE IS ALSO PRESENT BUT PROBABLY DOES NOT EXCEED MORE THAN ONE TON, AVERAGING 40 PERCENT MANGANESE.
Comment (Workings): NO DEVELOPMENT.
Comment (Geology): GEOL.DESC: RHODONITE ORE INTERBEDDED WITH QUARTZITE, AND A COARSE GRAINED GABBRO CROPS OUT TO THE EAST OF THE ORE BODY WITH AN INTRUSIVE OR FAULT CONTACT. LOWER EXPOSURE OF ORE MAY BE FLOAT OR CONTINUATION OF UPPER BED. SMALL AMOUNTS OF PYRITE, NATIVE COPPER, MALACHITE (?) AND SOME SILICEOUS BROWN ORE ARE PRESENT.
References
Reference (Deposit): DOM BULL. 152, 1950, PP. 71-72
Reference (Deposit): USBM R.I. 5579, P. 6
Reference (Deposit): PSFC REPT. FIG. 7,CALIF. DIV. MINES BULL. 179, FIG. 13.: ADD. REF.: USGS MR-23
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.
