South Dakota · Custer County
Past Producer
Dorothy Lode
Custer County, South Dakota, United States
Feldspar
Mica
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USGS source ↗
Commodities
Primary
Feldspar, Mica
Commodity type
N
Deposit
Deposit size
S
Workings
Surface
Orebody form
ELONGATE
Materials
Ore minerals
Albite, Microcline, Muscovite
Gangue
Beryl, Quartz, Tantalite
Geology
Host rock
Pegmatite
Associated rock
Pegmatite
Tectonic setting
Southern Black Hills
Economic & production
Development status
Past Producer
Identification
Deposit ID
10012483
MRDS ID
D008132
Region
NA
Data score
B
Coordinates
43.75413, -103.63445
References
USBM INFO CIRC 7707, P. 106-107.USGS PP 247, P. 100.USBM INFO CIRC 7707, P. 106.