Commodities
PrimaryFeldspar, Beryllium, Mica
Commodity typeB
Deposit
Deposit sizeS
Orebody form2 DIKES
Materials
Ore mineralsBeryl, Feldspar
GangueBiotite, Columbite, Quartz, Tourmaline
Geology
Host rockSchist
Associated rockPegmatite
Economic & production
Development statusPast Producer
Identification
Deposit ID10012460
MRDS IDD008103
RegionNA
Data scoreB
Coordinates43.6319, -103.61445
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.USGS PP 247, P. 162.USBM INFO CIRCULAR 7707, P. 164.