Commodities
PrimarySilver, Gold
SecondaryLead, Zinc, Copper
TertiaryTellurium
Commodity typeM
Deposit
Model153: Epithermal vein, quartz adularia
Deposit sizeS
WorkingsUnderground
Orebody formPipe
Ore controlAt Junction Two Fracture Planes
Materials
Ore mineralsChalcopyrite, Galena, Gold, Hemimorphite, Jamesonite, Petzite, Smithsonite, Sphalerite, Tetrahedrite
GangueCalcite, Dolomite, Pyrite, Quartz, Kaolin
Geology
Host rockTuff,Volcanic Breccia (Agglomerate),Andesite · Undivided Gneiss, Granite Boulders Included In Breccia
Associated rockTuff,Andesite · Rosita Andesite
StructureRosita Volcanic Center, Wet Mtns, Breccia Pipe, Faults, Mineralized Fissures, Fractures
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationQuartz Zone Surrounded By Strong Argillization
Economic & production
Development statusPast Producer
First production1878
Last production1958
Discovery year1877
Identification
Deposit ID10101726
MRDS IDD007930
Alternate namesCentenial Tunnel, Maine, Georgia, Claims: Queen Victoria, Triangle, Nemeha, William, Augusta, Lookout, Maine, Querida gold prospect
RegionNA
Data scoreA
Coordinates38.12751, -105.33307
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. 405-472SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.COLO DIV MINES SUMM OF MINERAL INDUSTRIES ACTIVITIES, 1974EMMONS, S.F., 1896;