South Dakota · Custer County
Past Producer
Rambler Lode
Custer County, South Dakota, United States
Feldspar
Mica
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USGS source ↗
Commodities
Primary
Feldspar
Secondary
Mica
Commodity type
N
Deposit
Deposit size
S
Workings
Surface
Orebody form
DIKE
Materials
Ore minerals
Mica
Gangue
Quartz
Geology
Host rock
Quartzite · Schist And Quartzite
Associated rock
Pegmatite · Pegmatite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10101553
MRDS ID
D004769
Region
NA
Data score
B
Coordinates
43.74552, -103.55778
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707