Commodities
PrimarySilver, Lead, Zinc
SecondaryCopper, Gold
TertiaryManganese
Commodity typeM
Deposit
Model72: Polymetallic replacement
Deposit sizeS
Ore controlChemically Favorable Limestone Near Faults
Materials
Ore mineralsChalcopyrite, Pyrite, Sphalerite
GangueCalcite, Pyrolusite, Quartz
Geology
Host rockLimestone · Hermosa Formation
Associated rockLatite · Hornblende Latite Porphyry
StructureSan Juan Uplift, Paradox Basin, Rico Dome, Yellow Jacket Fault, Nellie Bly Fault, Last Chance Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationOxidation Of Galena To Cerussite
Economic & production
Development statusPast Producer
First production1880
Last production1946
Discovery year1877
Identification
Deposit ID10101869
MRDS IDD010794
Alternate namesPatented Claims: Phoenix, MS 362, Pelican, MS 363, Yellow Jacket, MS 374
RegionNA
Data scoreB
Coordinates37.69945, -108.01815
References
RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 375-379.MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723, P. 89-91, PL. 2.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 SURVEYS MS 362, 363, 364COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.COLORADO DIV. MINES ANNUAL OPERATOR REPTS.