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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 DistrictMining District
Montrose Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
38° 26' 16'' North , 108° 54' 23'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
La Sal395 (2011)32.9km
Nucla702 (2017)36.4km
Naturita528 (2017)38.2km
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 PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range
Colorado Plateau, USAPlateau

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


2 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Carnotite (TL)
Formula: K2(UO2)2(VO4)2 · 3H2O
Type Locality:
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.05K2(UO2)2(VO4)2 · 3H2O
Tyuyamunite4.HB.25Ca(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.28.1K2(UO2)2(VO4)2 · 3H2O
Tyuyamunite40.2a.26.1Ca(UO2)2(VO4)2 · 5-8H2O

List of minerals for each chemical element

HHydrogen
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
OOxygen
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
CaCalcium
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
UUranium
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O

References

Sort by

Year (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.

USGS MRDS Record:10166776
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