Commodities
PrimaryNickel
SecondarySilver, Cobalt, Copper
Commodity typeM
Deposit
Model27: Alkaline complexes
Deposit sizeS
WorkingsUnknown
Ore controlFaults, Fault Intersections; Shear Zones; Carbonatite Dikes
Materials
Ore mineralsAnnabergite, Chalcocite, Niccolite, Silver, Bornite, Chalcopyrite
GangueCalcite, Dolomite, Magnetite, Pyrite, Quartz, Sphalerite
Geology
Host rockGabbro,Pyroxenite
Associated rockGabbro,Pyroxenite · Carbonatite Dike (Dolomite-Barite-Monazite);Pyroxenite
StructureNorthern Wet Mountains, Canon City Embayment, Thirtynine Mile Volcanic Field, Ne-Trending Faults, Gem Park Complex
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
Economic & production
Development statusPast Producer
First production1885
Identification
Deposit ID10013400
MRDS IDD009670
RegionNA
Data scoreB
Coordinates38.27557, -105.54669
References
COKER, R. J., 1982, MINERAL RESOURCES OF THE ARKANSAS CANYON PLANNING UNIT WITH SPECIAL EMPHASIS ON THE FORMER GRAPE CREEK WILDERNESS STUDY AREAS AND THE MCINTYRE HILLS WILDERNESS STUDY AREA: US BLM MINERAL REPORT, 125 P.TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A. AND EPIS, R. C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP -900, 1:62,500.PARKER, R. L. AND SHARP, W. N., 1970, MAFIC-ULTRAMAFIC IGNEOUS ROCKS AND ASSOCIATED CARBONATITES OF THE GEM PARK COMPLEX, CUSTER AND FREMONT COUNTIES, COLORADO: USGS PROF PAPER 649, 24 P.ARGALL, PHILIP, 1893, NICKEL; OCCURRENCE, GEOLOGICAL DISTRIBUTION AND GENESIS OF ORE DEPOSITS, WITH DISCUSSION BY THOMAS CHARLTON: COLORADO SCIENTIFIC SOCIETY PROCEEDINGS, V. 4, P. 419-4215) CROSS, WHITMAN, 1884, A LIST OF SPECIALLY NOTEWORTHY MINERALS OF COLORADO: COLORADO SCIENTIFIC SOCIETY PROCEEDINGS, V. 1, P. 1346) ECKEL, E.B., 1961, MINERALS OF COLORADO-A 100-YEAR RECORD: USGS BULLETIN 1114, P. 20, 55, 242.