South Dakota · Custer County
Past Producer
Homestead No. 3 Prospect
Custer County, South Dakota, United States
Mica
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USGS source ↗
Commodities
Primary
Mica
Commodity type
N
Deposit
Deposit size
S
Orebody form
DIKE
Materials
Ore minerals
Mica
Gangue
Albite, Quartz
Geology
Host rock
Pegmatite
Associated rock
Pegmatite · Pegmatite
Economic & production
Development status
Past Producer
First production
1943
Identification
Deposit ID
10055695
MRDS ID
SD02314
Region
NA
Data score
C
Coordinates
43.78024, -103.61584
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707