South Dakota · Custer County
Past Producer
Soda Spar Mine
Custer County, South Dakota, United States
Feldspar
Beryllium
Mica
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USGS source ↗
Commodities
Primary
Feldspar, Beryllium, Mica
Commodity type
B
Deposit
Deposit size
S
Workings
Surface
Materials
Ore minerals
Beryl, Feldspar, Mica
Gangue
Quartz
Geology
Host rock
Schist
Associated rock
Pegmatite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10099362
MRDS ID
SD02537
Region
NA
Data score
B
Coordinates
43.67746, -103.59417
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 167USBM INFO CIRC 7707, P. 167