Commodities
PrimaryFeldspar, Beryllium
Commodity typeB
Deposit
Deposit sizeS
Orebody formTABULAR DIKE
Materials
Ore mineralsBeryl, Feldspar
GangueAlbite, Apatite, Cassiterite, Cleavelandite, Columbite, Goethite, Graphite, Microcline, Muscovite, Opal, Plagioclase, Quartz, Spodumene, Tourmaline, Uraninite, Uranophane, Vivianite, Zircon
Geology
Host rockPegmatite
Associated rockPegmatite
StructureThe Pegmatite Is On The Southern End Extremity Of A N-S Ridge.
AlterationIron-Stained
Economic & production
Development statusPast Producer
Identification
Deposit ID10012470
MRDS IDD008116
RegionNA
Data scoreB
Coordinates43.87635, -103.36778
References
USBM INFO CIRC 7707, P. 71-72.DANAS SYSTEM OF MINERALOGY, ED VOL 2, P. 952-953.ENCYCLOPEDIA OF MINERALSSPRING, S. G., AND ANDERSON, D. W., 1957, A GEOLOGIC INVESTIGATION OF THE FERGUSON PEGMATITE, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY.USBM INFO CIRC 7707, P. 72.