South Dakota · Custer County
Occurrence

Jumbo Lode

Custer County, South Dakota, United States
FeldsparMicaBeryllium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryFeldspar, Mica, Beryllium
Commodity typeB
Deposit
Deposit sizeN
Materials
Ore mineralsBeryl, Biotite, Feldspar, Microcline, Muscovite
GangueQuartz, Tourmaline
Geology
Host rockPegmatite
Associated rockPegmatite,Granite
Economic & production
Development statusOccurrence
Identification
Deposit ID10055771
MRDS IDSD02517
RegionNA
Data scoreC
Coordinates43.83329, -103.39945
References
USBM CIRC 7707, P. 74