South Dakota · Custer County
Past Producer
Star and Blue Bonnet Claims
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
10299105
Alternate names
Langford Mine
Region
NA
Data score
D
Coordinates
43.74606, -103.52496
References
USBM STAFF,1955, REG.V, I.C. 7707, P.115PAGE,L.R.ET AL.,1953, USGS PROF. PAPER 247,P.74-75