Commodities
TertiarySilica, Manganese
Commodity typeM
Materials
Other materialsChert, Psilomelane, Pyrolusite
Economic & production
Development statusPast Producer
First production1916
Discovery year1915
Identification
Deposit ID10261495
MRDS IDM010043
RegionNA
Data scoreD
Coordinates39.30157, -123.17029
References
CDMG,BULL.152,1950,P.137-139CDMG,BULL.#76,P16,46-48,93,1918TRENGROVE,R.R.,USBM REPT.INV.5579,P.10-11USGS FILE OF WWICJMG V.49, #4 PG.363 (1953)