Commodities
PrimarySilver, Lead
SecondaryZinc, Copper, Gold
Commodity typeM
Deposit
Model72: Polymetallic replacement
Deposit sizeS
Ore controlBrecciated Shale Adjacent To Barren Fissure
Materials
Ore mineralsChalcopyrite, Limonite, Pyrite, Smithsonite, Sphalerite
GangueFluorite, Quartz
Geology
Host rockShale,Sandstone · Hermosa Formation
Associated rockLatite · Hornblende Latite Porphyry
StructureSan Juan Uplift, Paradox Basin, Rico Dome Blackhawk Fault, Princeton Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationOxidation Of Pyrite And Pb-Zn Sulfides
Economic & production
Development statusPast Producer
Last production1926
Identification
Deposit ID10111402
MRDS IDD010775
Alternate namesRuth, Virginia, Little Byron, Rocky Mountain, Klondike, Madam De Farge, Royal Turk, MS 8020, Unpatented Claims: Litllie D., Carrie, Zig Zag, Little Margaret, Ella, Patented Claims: Clan Campbell, MS 1897, Black Geroge, MS 2485, Silver Belt, MS 8020
RegionNA
Data scoreB
Coordinates37.70834, -108.02732
References
MCKNIGHT,E.T., 1974, GEOLGY 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.RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 393-394.CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.BLM MINERAL SURVEYS MS 1897, 2485, 8020COLORADO DIV. MINES ANNUAL OPERATOR REPTS.