Rajah Mine (Big Chief No. 2; Dullan claim), Uravan Mining District, Montrose Co., Colorado, USAi
|Regional Level Types|
|Rajah Mine (Big Chief No. 2; Dullan claim)||Mine|
|Uravan Mining District||Mining District|
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Latitude & Longitude (WGS84):
38° 26' 16'' North , 108° 54' 23'' West
Latitude & Longitude (decimal):
Köppen climate type:
Other/historical names associated with this locality:
Big Chief #2
A former U-V occurrence/mine located in the NE¼NE¼NE¼ sec. 12, T48N, R19W, G&SRM, along the N side of Roc (sic) Creek, on private land (located claim). Owned by Vanadium Corporation of America and operated by B.J. Burns (1962). Owned by Foote Minerals, Colorado (100%) (1975). MRDS database stated accuracy for this location is 10 meters.
Mineralization is an U-V deposit. Ore body No. 1 is sedimentary and irregular. Ore body No. 2 is tabular and ore body No. 3 is lenticular. The primary mode of origin was residual concentration and the secondary mode was oxidation. Primary ore control was lithology and the secondary control was bedding. Wallrock alteration is moderate (bleaching). Local rocks include rocks of the Moenkopi Formation and of the Cutler Formation.
Workings include unspecified underground openings.
Regions containing this locality
|North America Plate||Tectonic Plate|
|Rocky Mountains, North America||Mountain Range|
|Colorado Plateau, USA||Plateau|
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
2 valid minerals. 1 (TL) - type locality of valid minerals.
Detailed Mineral List:
| ⓘ Carnotite (TL)|
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: "Minerals of Colorado, updated & revised", p. 133, by Eckel, Edwin B., 1997.
| ⓘ Tyuyamunite|
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, deposit ID #10166776.
List of minerals arranged by Strunz 10th Edition classification
|Group 4 - Oxides and Hydroxides|
|ⓘ||Carnotite (TL)||4.HB.05||K2(UO2)2(VO4)2 · 3H2O|
|ⓘ||Tyuyamunite||4.HB.25||Ca(UO2)2(VO4)2 · 5-8H2O|
List of minerals arranged by Dana 8th Edition classification
|Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES|
|AB2(XO4)2·xH2O, containing (UO2)2+|
|ⓘ||Carnotite (TL)||40.2a.28.1||K2(UO2)2(VO4)2 · 3H2O|
|ⓘ||Tyuyamunite||40.2a.26.1||Ca(UO2)2(VO4)2 · 5-8H2O|
List of minerals for each chemical element
|H||ⓘ Carnotite||K2(UO2)2(VO4)2 · 3H2O|
|H||ⓘ Tyuyamunite||Ca(UO2)2(VO4)2 · 5-8H2O|
|O||ⓘ Carnotite||K2(UO2)2(VO4)2 · 3H2O|
|O||ⓘ Tyuyamunite||Ca(UO2)2(VO4)2 · 5-8H2O|
|K||ⓘ Carnotite||K2(UO2)2(VO4)2 · 3H2O|
|Ca||ⓘ Tyuyamunite||Ca(UO2)2(VO4)2 · 5-8H2O|
|V||ⓘ Carnotite||K2(UO2)2(VO4)2 · 3H2O|
|V||ⓘ Tyuyamunite||Ca(UO2)2(VO4)2 · 5-8H2O|
|U||ⓘ Carnotite||K2(UO2)2(VO4)2 · 3H2O|
|U||ⓘ Tyuyamunite||Ca(UO2)2(VO4)2 · 5-8H2O|
Sort byYear (asc) Year (desc) Author (A-Z) Author (Z-A)
Friedel, C., Cumenge, E. (1899) Sur un nouveau minerai d´urane. Bulletin de la Société Française de Minéralogie: 22, 26-29.
Colorado Bureau of Mines (1962), Report.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0080850408.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, deposit ID #10166776.
Royce, Craig Evan (2012), Uranium Seekers: A Photo-Essay Tribute to Miners: 14 & 15.
Crib record number DC04628.
U.S. Bureau of Mines Survey Management quadrangle.
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