Commodities
PrimaryFeldspar, Quartz
SecondaryFluorine-Fluorite, REE
TertiaryThorium, Niobium (Columbium), Tantalum
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnknown
Orebody formCIRCULAR
Materials
Ore mineralsQuartz
GangueBiotite, Cleavelandite, Fergusonite, Muscovite, Sericite, Thorite
Geology
Host rockPegmatite · Pikes Peak Granite;Pegmatite
Associated rockPegmatite,Granite · Pikes Peak Granite;Pegmatite
StructureFront Range Uplift, Pikes Peak Batholith, Pine Gulch Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationPerthite Replaced By Cleavelandite; Biotite By Hematite; Possible Hydration Of Cyrtolite-Thorite; Partial Replacement Of Fluorite By Yttrofluorite; Minor Sericite.
Economic & production
Development statusPast Producer
Last production1967
Identification
Deposit ID10087820
MRDS IDD010171
Alternate namesPatsy Mine, Claim: Little Patsy
RegionNA
Data scoreB
Coordinates39.41055, -105.2303
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.HAYNES, C.V., JR., 1965, GENESIS OF THE WHITE CLOUD AND RELATED PEGMATITES, SOUTH PLATTE AREA, JEFFERSON COUNTY, COLORADO: GSA BULL., V. 76, NO. 4, P. 441-462.COLORADO DIVISION OF MINES ANNUAL OPERATORS REPTS.