California · Alameda County
Occurrence

Dyer Prospect

Alameda County, California, United States
Manganese
⌖ Show on mapUSGS source ↗
Commodities
TertiaryManganese
Commodity typeM
Deposit
Deposit typeResidual
Deposit sizeN
Materials
Ore mineralsPsilomelane
GanguePyrolusite
Economic & production
Development statusOccurrence
Identification
Deposit ID10027960
MRDS IDM004651
RegionNA
Data scoreC
Coordinates37.7588, -121.66853
References
CALIF. JOUR. MINES & GEOL. V. 46, NO. 2, P. 344, PL. 58DOM BULL. 125, P.98BULL. 152, P.20