Colorado · El Paso County
Past Producer

Duffields Deposit

El Paso County, Colorado, United States
Fluorine-FluoriteGoldLeadZincSilver
⌖ Show on mapUSGS source ↗
Description

Thomas Hughes (Hughes Boss Claimant)

Commodities
PrimaryFluorine-Fluorite
SecondaryGold, Lead, Zinc, Silver
Commodity typeB
Deposit
Deposit typeVein
Deposit sizeS
Materials
Ore mineralsFluorite, Galena, Sphalerite
GangueBarite, Quartz
Geology
Host rockGranite · Pikes Peak Granite
Associated rockGranite · Pikes Peak Granite;Aplite Dike
StructureFront Range Uplift, Pikes Peak Batholith, Mt Rosa Intrusive Center, Ute Pass Fault, Manitou Park Half Graben
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationWallrock Silicification
Economic & production
Development statusPast Producer
First production1910
Last production1945
Discovery year1901
Identification
Deposit ID10087849
MRDS IDD010307
Alternate namesLeyte, MS 20742, Hughes Boss Shaft and Leyte Open Pit, Claims: Hughes Boss, MS 14464
RegionNA
Data scoreB
Coordinates38.73834, -104.90917
References
TRIMBLE, D.E., AND MACHETTE, M.N., 1979, GEOLOGIC MAP OF THE COLORADO SPRINGS-CASTLE ROCK AREA, FRONT RANGE URBAN CORRIDOR, COLORADO: USGS MAP I-857-F.FINLAY, G.I., 1916, DESCRIPTION OF THE COLORADO SPRINGS QUADRANGLE: USGS FOLIO 203.STEVEN, T.A., 1949, GEOLOGY AND FLUORSPAR DEPOSITS OF THE ST. PETERS DOME DISTRICT, COLORADO: COLORADO SCI. SOC. PROC., V. 15, NO. 6, P. 259-284.PEARL, R.M., 1965, COLORADO GEM TRAILS AND MINERAL GUIDE: DENVER, SAGE BOOKS, P. 171-180.OVER, EDWIN, JR., 1929, SOME MINERAL LOCALITIES OF EL PASO COUNTY: ROCKS AND MINERALS, V. 4, NO. 4, P. 106-107.STEVEN, 1949