Phillip Mine, Custer District, Custer Co., South Dakota, USA
REF:Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAT 7707,P168
Deposit:: GUITERAS,J.R.,1940,USBM IC 7112, P 40.
Production:: USBM INFO CIRC 7707, P. 168.
Commodities (Major) - Feldspar
Development Status: Past Producer
Host Rock: Schist
| 'K Feldspar'|| 'Mica Group'|| Quartz|| 'Tourmaline'|
4 entries listed. 1 valid mineral.
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