Commodities
PrimaryFeldspar, Fluorine-Fluorite
TertiaryREE, Niobium (Columbium), Tantalum
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnknown
Orebody formOVAL
Materials
Ore mineralsFluorite
GangueBiotite, Topaz
Geology
Host rockPegmatite · Pegmatite;Pikes Peak Granite
Associated rockPegmatite,Granite · Pegmatite;Pikes Peak Granite
StructureFront Range Uplift, Pikes Peak Batholith, Kennedy Gulch Fault Zone
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusPast Producer
Identification
Deposit ID10013721
MRDS IDD010170
Alternate namesLester Mine, Yttrium No. 1
RegionNA
Data scoreB
Coordinates39.39805, -105.22114
References
SIMMONS, W.B., AND HEINRICH, E.W., 1980, RARE-EARTH PEGMATITES OF THE SOUTH PLATTE DISTRICT, COLORADO: CGS RESOURCE SER. 11, 131 P.PETERSON, W.L., 1964, GEOLOGY OF THE PLATTE CANYON QUADRANGLE, COLORADO: USGS BULL. 1181-C, 23 P., 1 PL.