South Dakota · Custer County
Occurrence
Sky Lode
Custer County, South Dakota, United States
Lithium
Feldspar
Mica
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USGS source ↗
Commodities
Primary
Lithium, Feldspar
Tertiary
Mica
Commodity type
B
Deposit
Deposit size
N
Materials
Ore minerals
Feldspar, Mica, Spodumene
Gangue
Quartz, Tourmaline
Geology
Host rock
Pegmatite,Granite
Associated rock
Pegmatite,Granite · Harney Peak Granite
Economic & production
Development status
Occurrence
Identification
Deposit ID
10095919
MRDS ID
SD02508
Region
NA
Data score
C
Coordinates
43.84718, -103.62335
References
USBM INFO CIRC 7707, P. 82