Mine detail: Swartz Ranch

Previously called 'Iron QueenD.P. Van Nouhuys Property'

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Location

Lat / long:

38.14751, -105.33168

Resource(B)

Primary:	Vermiculite, Thorium, REE
Tertiary:	Uranium, Beryllium
Ore:	Bertrandite, Thorite
Gangue:	Hematite, Limonite, Vermiculite
Orebody form:	TABULAR

Production

Operation type:	Surface
Production size:	None
Development status:	Prospect

Geology

Host rock:	Hornblende Gneiss, Gabbroic Gneiss, Alaskitic Granite Gneiss
Host type:	Gneiss
Structure:	Wet Mountains, Shear Zone
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Silicification

References

MRDS	D008260
DEP	10012575
Reference	{Deposit:: NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLORADO GEOLOGICAL SURVEY BULLETIN 40, P. 120}{Deposit:: BROCK, M.R. AND SINGEWALD, Q.D., 1968, GEOLOGIC MAP OF THE MOUNT TYNDALL QUADRANGLE, CUSTER COUNTY, COLORADO: USGS MAP GQ-596}{Deposit:: CHRISTMAN, R.A., HEYMAN, A.M., DELLWIG, L.F. AND GOTT, G.B., 1953, THORIUM INVESTIGATIONS 1950-52, WET MOUNTAINS, COLORADO: USGS CIRCULAR 290, P.24, 29.}
Reporter	Collins, Donna B.