Commodities
PrimarySilver
SecondaryLead
Commodity typeM
Deposit
Deposit typeVein
Model82: Epithermal veins
Deposit sizeS
WorkingsUnderground
Orebody formvein
Ore controlCalifornia Fault; Contact Between Trachyte And Gneiss
Materials
Ore mineralsGalena
GangueBarite
Geology
Host rockTrachyte
Associated rockTrachyte · Trachyte Of Game Ridge;Undivided Gneiss; Dark, Augite-Gneiss
StructureRosita Volcanic Center, Wet Mtns, California Fault Separates Trachyte And Gneiss
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationWeak Argillization
Economic & production
Development statusPast Producer
First production1883
Discovery year1883
Identification
Deposit ID10012288
MRDS IDD007839
RegionNA
Data scoreB
Coordinates38.11001, -105.32001
References
CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.Emmons, S.F., 1896, The mines of Custer County, Colorado: U.S. Geological Survey 17th Annual Report, Pt. 2, pp. 405-472.Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.