Mine detail: Idledale District

Previously called ''

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Location

Lat / long:

39.66527, -105.24836

Resource(M)

Primary:	Uranium
Tertiary:	Copper, Lead, Zinc
Ore:	Chalcopyrite, Coffinite, Galena, Pitchblende, Pyrite, Sphalerite
Gangue:	Ankerite, Calcite, Chlorite, Fluorite, Quartz
Discovery year:	1955

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
First production started:	1955
Last production ended:	1968

Geology

Host rock:	Idaho Springs Formation
Host type:	Gneiss
Structure:	Front Range Uplift, Denver Basin, Bear Creek Shear Zone, Junction Ranch Fault, Cherry Gulch Fault
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Fe Oxidation

References

MRDS	D009847
DEP	10013504
Reference	{Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 189-196}{Deposit:: SCOTT, G.R., 1972, GEOLOGIC MAP OF THE MORRISON QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS MAP I-790-A}{Deposit:: GABLE, D.J., 1968, GEOLOGY OF THE CRYSTALLINE ROCKS IN THE WESTERN PART OF THE MORRISON QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS BULL. 1251-E}{Deposit:: SIMS, P.K., AND SHERIDAN, D.M., 1964, GEOLOGY OF URANIUM DEPOSITS INTHE FRONT RANGE, COLORADO: USGS BULL, 1159, P. 94-100}{Production:: SIMS, P.K., AND SHERIDAN, D.M., 1964, P. 96; NELSON-MOORE, J.L., AND OTHERS, 1978, P. 192, 194, 196}
Reporter	Schwochow, Stephen D.