South Dakota · Custer County
Past Producer

Tom Carroll Claim

Custer County, South Dakota, United States
FeldsparBerylliumMica
⌖ Show on mapUSGS source ↗
Commodities
PrimaryFeldspar, Beryllium
TertiaryMica
Commodity typeB
Deposit
Deposit sizeS
Materials
Ore mineralsBeryl, Mica, Microcline
GangueQuartz
Geology
Host rockPegmatite
Associated rockPegmatite,Granite
Economic & production
Development statusPast Producer
Identification
Deposit ID10055778
MRDS IDSD02528
RegionNA
Data scoreC
Coordinates43.7294, -103.68168
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 195