South Dakota · Custer County
Past Producer
Little Spar Mine
Custer County, South Dakota, United States
Feldspar
⌖ Show on map
USGS source ↗
Commodities
Primary
Feldspar
Commodity type
N
Deposit
Deposit size
S
Workings
Surface
Orebody form
DIKE
Materials
Ore minerals
Feldspar
Gangue
Mica, Quartz, Tourmaline
Geology
Host rock
Granite
Associated rock
Pegmatite,Granite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10012461
MRDS ID
D008104
Region
NA
Data score
B
Coordinates
43.70635, -103.50695
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707USBM INFO CIRC 7707, P. 177.