Commodities
PrimaryFeldspar, Beryllium
SecondaryTantalum
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Orebody formELLIPTICAL
Materials
Ore mineralsBeryl, Feldspar
GangueMica, Triphylite
Geology
Host rockPegmatite
Associated rockPegmatite
Economic & production
Development statusPast Producer
Identification
Deposit ID10055785
MRDS IDSD02538
RegionNA
Data scoreB
Coordinates43.65607, -103.58334
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 166-167AM MIN, VOL 59, P. 48-59.ENCYCLOPEDIA OF MINERALSUSBM INFO CIRC 7707, P. 166-167; SDGS MR 10, P. 5; SDGS MR 11, P. 5.