South Dakota · Pennington County
Past Producer

Big Smoke Group

Pennington County, South Dakota, United States
FeldsparBerylliumMica
⌖ Show on mapUSGS source ↗
Commodities
PrimaryFeldspar, Beryllium
TertiaryMica
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Materials
Ore mineralsBeryl, Muscovite
GangueQuartz, Siderite, Tourmaline
Geology
Host rockPegmatite
Associated rockPegmatite
Economic & production
Development statusPast Producer
Identification
Deposit ID10055760
MRDS IDSD02503
Alternate namesTrail Hill Feldspar Dike, Big Smoke No 1, Big Smoke No 2
RegionNA
Data scoreB
Coordinates43.85774, -103.37528
References
USBM INFO CIRC 7707, P. 67SDSMT BULL 18