Commodities
PrimaryZinc, Uranium
SecondaryVanadium
TertiaryCopper, Iron, Molybdenum
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formWEDGE
Ore controlSulfide-Magnetite Localized In Isolated Skarn In Granite; U Localiz Ed In Laramide Faults Near Intersections With Sulfide-Magnetite Ore.
Materials
Ore mineralsChalcopyrite, Coffinite, Magnetite, Marcasite, Molybdenite, Pitchblende, Pyrite, Pyrrhotite, Sphalerite
GangueActinolite, Anthophyllite, Apatite, Fluorite, Goethite, Hematite, Phlogopite, Siderite
Geology
Host rockGranite · Sherman Granite;Metasedimentary Rocks--Amphibole Skarn
Associated rockPegmatite · Sherman Granite;Pegmatite
StructureFront Range Uplift, Sherman Batholith, Virginia Dale Ring Dike Complex, Copper King Fault, B Fault, A Fau Lt
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationSaussuritic(?) Alteration Of Granite Wallrock; Amphibole And Mica Replacement In Skarn; Chloritization Of Skarn And Mica; Partial Oxidat Ion And Hydration Of Pitchblende; Fe Oxidation
Economic & production
Development statusPast Producer
First production1920
Last production1953
Discovery year1925
Identification
Deposit ID10013961
MRDS IDD010535
Alternate namesClaims: Black Hawk No. 1, Black Hawk No. 2
RegionNA
Data scoreB
Coordinates40.85026, -105.49588
References
SIMS, P.K., AND OTHERS, 1958, GEOLOGY OF THE COPPER KING URANIUM MI NE, LARIMER COUNTY, COLORADO: USGS BULL. 1032-D, 50 P.PHAIR, GEORGE, AND SIMS, P.K., 1954, PARAGENESIS AND AGE OF THE URA NIUM MINERALS IN THE COPPER KING MINE, LARIMER COUNTY, COLORADO (ABS.) : GSA BULL., V. 65, NO. 12, PT. 2, P. 1385.SIMS, P.K., AND TOULMIN, PRIESTLY, 1961, TEMPERATURE OF FORMATION O F A PRECAMBRIAN MASSIVE SULFIDE DEPOSIT, COPPER KING MINE, FRONT RANGE , COLORADO: USGS PROF. PAPER 424-B, P. B1-B2.NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENC ES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 208.COLORADO DIV. MINES ANN. OPERATOR REPTS. AND INF. REPTS.SIMS AND OTHERS (1920 ZN PROD.); ORIGINAL CRIB RECORD (1951 ZN AND U ORE PROD.); COLO. DIV. MINES (1952-53 U ORE PROD.); NELSON-MOORE AND OTHERS (CUMUL. U308/V205 PROD.)