Mine detail: Franklin Mine

Previously called 'Frankland MineFrancklyn Mine'

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Location: Custer County, Colorado, United States, North America
Lat / long: 38.17445, -105.23113
dep_id: 10012578
mrds_id: D008264
Commodity type: metallic
Major mineral: Thorium, REE
Minor mineral: Lead, Copper
Operation type: Surface-Underground
Production size: Small ammount of material produced
Development status: Past Producer
ore: Bornite, Galena, Thorite
gangue: Barite, Calcite, Clay, Hematite, Limonite, Quartz, Siderite
orebody_fm: TABULAR
work_type: Surface/Underground
model: 30: Thorium-rare-earth veins
alteration: Argillization
ore_ctrl: Mineralized Veins;
Reporter: Collins, Donna B.
hrock_unit: Migmatitic Gneiss
hrock_type: Gneiss
Structure: Wet Mountains, Northwest-Trending Faults , Ilse Fault
tectonic: Central Cordillera (Southern Rocky Mountains)
References:
  • 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. 121
  • Deposit:: CHRISTMAN, R.A., BROCK, M.R., PEARSON, R.C., AND SINGEWALD, Q.D., 1959, GEOLOGY AND THORIUM DEPOSITS OF THE WET MOUNTAINS, COLORADO, A PROGRESS REPORT: USGS BULL. 1072-H, P.531
  • Deposit:: SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOGIC MAP OF THE PUEBLO 10X20 QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAPI-1022, SCALE 1: 250, 000
  • Deposit:: HUNTER, J.F., 1915, SOME CERUSSITE DEPOSITS IN CUSTER COUNTY, COLORADO, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY: USGS BULLETIN 580, P. 25-37.
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