South Dakota · Custer County
Occurrence
E.M. Lode Prospect
Custer County, South Dakota, United States
Feldspar
Mica
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USGS source ↗
Commodities
Primary
Feldspar
Tertiary
Mica
Commodity type
N
Deposit
Deposit size
N
Workings
Surface
Materials
Ore minerals
Feldspar, Mica
Gangue
Quartz
Geology
Host rock
Schist,Pegmatite
Associated rock
Pegmatite
Alteration
Iron Stained
Economic & production
Development status
Occurrence
Identification
Deposit ID
10095925
MRDS ID
SD02564
Region
NA
Data score
C
Coordinates
43.80663, -103.5425
References
USBM INFO CIRC 7707, P. 108