Commodities
PrimaryFeldspar, Lithium, Mica, Tantalum
SecondaryBeryllium
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Orebody formKNOB
Materials
Ore mineralsAmblygonite, Beryl, Feldspar, Muscovite
GangueQuartz
Geology
Host rockPegmatite
Associated rockPegmatite · Pegmatite
Economic & production
Development statusPast Producer
Identification
Deposit ID10101549
MRDS IDD004749
RegionNA
Data scoreB
Coordinates43.8244, -103.65807
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707