Commodities
PrimaryFeldspar, REE
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnknown
Orebody formELLIPSOIDAL
Materials
Ore mineralsMicrocline
GangueAllanite, Amethyst, Doverite, Fluorite, Gadolinite, Monazite, Xenotime
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)
AlterationRae Replacement Of Fluorite
Economic & production
Development statusPast Producer
Identification
Deposit ID10087823
MRDS IDD010179
Alternate namesBig Bear, Little Bear
RegionNA
Data scoreB
Coordinates39.37583, -105.21169
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.