Commodities
PrimaryFeldspar, Beryllium, Mica
TertiaryUranium, Lithium, Bismuth, Phosphorus-Phosphates
Commodity typeB
Deposit
Deposit sizeS
Orebody formLENTICULAR
Materials
Ore mineralsBeryl, Muscovite
GangueAlbite, Apatite, Bertrandite, Bismuthinite, Cleavelandite, Garnet, Purpurite, Torbernite, Tourmaline, Triphylite, Uraninite
Geology
Host rockTonalite,Mica Schist · Metasedimentary Rocks--Quartz-Mica Schist;Pegmatite
Associated rockTonalite,Pegmatite · Pegmatite;Tonalite (Quartz Diorite)
StructureFront Range Uplift, Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationFe Oxidation; Alteration Of Bi And U Minerals
Economic & production
Development statusProducer
First production1936
Last production1948
Discovery year1936
Identification
Deposit ID10013857
MRDS IDD010387
RegionNA
Data scoreB
Coordinates40.4597, -105.35337
References
THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROF. PAPER 227, P. 99-102.MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 30.GILKEY, M.M., 1960, HYATT RANCH PEGMATITE, LARIMER COUNTY, COLO.: USBM RI-5643, 18 P. & &BRADDOCK, W.A., AND OTHERS, 1970, GEOLOGIC MAP OF THE DRAKE QUADRANGLE, LARIMER COUNTY, COLORADO: USGS MAP GQ-829.HANLEY AND OTHERS, 1950; THURSTON, 1955