Commodities
PrimarySilver, Copper
SecondaryZinc, Lead
Commodity typeM
Deposit
Model72: Polymetallic replacement
Deposit sizeS
Ore controlChemically Favorable Limestone Cut By Fissure
Materials
Ore mineralsChalcopyrite, Pyrite, Sphalerite
GangueQuartz
Geology
Host rockLimestone · Hermosa Formation
Associated rockLatite · Hornblende Latite Porphyry
StructureSan Juan Uplift, Paradox Basin, Rico Dome, Nellie Bly Fault, Unnamed Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusPast Producer
Last production1920
Discovery year1882
Identification
Deposit ID10014127
MRDS IDD010771
Alternate namesPatented Claim: Iron Mine, Ms 8758
RegionNA
Data scoreB
Coordinates37.70057, -108.01482
References
RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 383-385.MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.BLM MINERAL SURVEY MS 8758COLORADO DIV. MINES INF. REPT.