Commodities
PrimaryUranium
TertiaryCopper, Lead
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnknown
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Uraninite
GangueAnkerite, Calcite, Fluorite, Quartz
Geology
Host rockGneiss · Idaho Springs Formation-Hornblende Gneiss Unit
Associated rockPegmatite · Granitic Pegmatite
StructureFront Range Uplift, Denver Basin, Hurricane Hill Fault System, Ascension Fault
Tectonic settingCentral Cordillera (Southern Rocky Mts)
Economic & production
Development statusProducer
First production1956
Last production1972
Discovery year1955
Identification
Deposit ID10107989
MRDS IDD010153
Alternate namesNair Prospect, Nare Lease
RegionNA
Data scoreB
Coordinates39.77971, -105.29086
References
NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLORADO GEOLOGICAL SURVEY BULL. 40, P. 190SHERIDAN, DOUGLAS M. AND OTHERS, 1967, GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO: USGS PROF. PAPER 520.SIMS, P.K., AND SHERIDAN, D.M., 1964, GEOLOGY OF URANIUM DEPOSITS IN THE FRONT RANGE, COLORADO: USGS BULL. 1159, P. 92-93SHERIDAN AND OTHERS, 1967, P. 75; COLORADO DIV. MINES ANN. OPERATORS REPTS. 1957-1972