South Dakota · Custer County
Occurrence
Ixl Lode No. 4 Prospect
Custer County, South Dakota, United States
Feldspar
Mica
⌖ Show on map
USGS source ↗
Commodities
Primary
Feldspar, Mica
Commodity type
N
Deposit
Deposit size
N
Workings
Surface
Materials
Ore minerals
Feldspar, Mica
Gangue
Garnet, Quartz, Tourmaline
Geology
Host rock
Pegmatite
Associated rock
Pegmatite
Economic & production
Development status
Occurrence
Identification
Deposit ID
10095921
MRDS ID
SD02546
Region
NA
Data score
C
Coordinates
43.77663, -103.52889
References
USBM INFO CIRC 7707, P. 112-113