Commodities
PrimaryFeldspar, Mica, Beryllium
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Materials
Ore mineralsBeryl, Muscovite
GangueAlbite, Garnet, Tourmaline
Geology
Host rockMica Schist
Associated rockPegmatite
Tectonic settingSouthern Black Hills
Economic & production
Development statusPast Producer
Identification
Deposit ID10012482
MRDS IDD008130
RegionNA
Data scoreB
Coordinates43.7544, -103.65307
References
USBM INFO CIRC 7707, P. 114-115.USGS PP 247, P. 74.ROBERTS, W. L. AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18.