Commodities
PrimaryLead, Silver
SecondaryCopper
TertiaryIron
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnknown
Ore controlOn Humboldt-Pocahontas Vein; Mineralized Fissures, Planes Of Movement
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Silver, Stephanite, Tetrahedrite
GangueBarite, Calcite
Geology
Host rockAndesite,Tuff,Volcanic Breccia (Agglomerate) · Rosita Andesite;Game Ridge Trachyte; Ore On Both Sides Of Dike
StructureRosita Volcanic Center, Wet Mtns, Rosita Fault, Humboldt-Pocahontas Vein
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationWeakly Argillized
Economic & production
Development statusPast Producer
Discovery year1874
Identification
Deposit ID10012440
MRDS IDD008073
Alternate namesWest Virginia Claim ?, Blue Lode
RegionNA
Data scoreB
Coordinates38.10251, -105.33446
References
CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472.SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.EMMONS, S.F., 1896; COLO. DIVISION MINES INSPECTION RECORDS