South Dakota · Custer County
Past Producer
Ballard Mine
Custer County, South Dakota, United States
Mica
Beryllium
Feldspar
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USGS source ↗
Commodities
Primary
Mica
Tertiary
Beryllium, Feldspar
Commodity type
B
Economic & production
Development status
Past Producer
Identification
Deposit ID
10202615
Region
NA
Data score
D
Coordinates
43.79436, -103.64497
References
U S BUREAU OF MINES STAFF 1955 REG V,2,INFO CIRCULAR 7707 PPAGE,L R ET AL,U S G S P P 247 P 65 1953