South Dakota · Custer County
Producer

Number Nine Lode

Custer County, South Dakota, United States
FeldsparBerylliumMica
⌖ Show on mapUSGS source ↗
Commodities
PrimaryFeldspar, Beryllium
SecondaryMica
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Materials
Ore mineralsBeryl, Feldspar, Mica
GangueSpodumene
Geology
Host rockSchist
Associated rockPegmatite
Economic & production
Development statusProducer
Identification
Deposit ID10055786
MRDS IDSD02539
RegionNA
Data scoreB
Coordinates43.71718, -103.52806
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 175USBM INFO CIRC 7707, P. 175