South Dakota · Custer County
Occurrence

Bald No. 1 Lode

Custer County, South Dakota, United States
Feldspar
⌖ Show on mapUSGS source ↗
Commodities
PrimaryFeldspar
Commodity typeN
Deposit
Deposit sizeN
Orebody formDIKE-LIKE
Materials
Ore mineralsFeldspar
GangueMica, Quartz, Tourmaline
Geology
Host rockQuartzite
Associated rockPegmatite,Granite
Tectonic settingSouthern Black Hills
Economic & production
Development statusOccurrence
Identification
Deposit ID10011992
MRDS IDD007215
RegionNA
Data scoreC
Coordinates43.61635, -103.54528
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707