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Rex No. 2 Mine, Temple Mountain Mining District, Emery County, Utah, USAi
Regional Level Types
Rex No. 2 MineMine
Temple Mountain Mining DistrictMining District
Emery CountyCounty
UtahState
USACountry

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Latitude & Longitude (WGS84):
38° 40' 45'' North , 110° 40' 14'' West
Latitude & Longitude (decimal):
38.67941,-110.67074
GRN:
N26W63
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Hanksville212 (2017)34.3km
Ferron1,562 (2017)61.0km
Clawson193 (2017)62.5km
Mindat Locality ID:
37815
Long-form identifier:
mindat:1:2:37815:3
GUID (UUID V4):
0
Other/historical names associated with this locality:
Aec #2


The Rex No. 2 mine was in Shinarump conglomerate (Triassic) at Temple Mountain on the southeast side of the San Rafael swell in Utah.

Montroseite was collected from the Rex No. 2 Mine, in 1952 by A. Rosenzweig of the Atomic Energy Commission.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

ⓘ Corvusite
Formula: (Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
ⓘ Hewettite
Formula: CaV6O16 · 9H2O
ⓘ Montroseite
Formula: (V3+,Fe3+)O(OH)
Description: According to Weeks et al, Montroseite was collected from the Rex No. 2 Mine at Temple Mountain, Emery County, Utah, in 1952 by A. Rosenzweig of the Atomic Energy Commission. "A. Rosenzweig ... sent a few milligrams of nearly pure montroseite from the Rex No. 2 mine to the writers for identification. The sample consisted of cleavage fragments and aggregates of grains larger than those in other samples..."
ⓘ Paramontroseite
Formula: V4+O2
ⓘ Uraninite
Formula: UO2
ⓘ Uraninite var. Pitchblende
Formula: UO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘParamontroseite4.DB.15aV4+O2
ⓘUraninite
var. Pitchblende		4.DL.05UO2
ⓘ4.DL.05UO2
ⓘMontroseite4.FD.10(V3+,Fe3+)O(OH)
ⓘHewettite4.HE.15CaV6O16 · 9H2O
ⓘCorvusite4.HE.20(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O

List of minerals for each chemical element

HHydrogen
Hⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Hⓘ HewettiteCaV6O16 · 9H2O
Hⓘ Montroseite(V3+,Fe3+)O(OH)
OOxygen
Oⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Oⓘ HewettiteCaV6O16 · 9H2O
Oⓘ Montroseite(V3+,Fe3+)O(OH)
Oⓘ ParamontroseiteV4+O2
Oⓘ Uraninite var. PitchblendeUO2
Oⓘ UraniniteUO2
NaSodium
Naⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
MgMagnesium
Mgⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
KPotassium
Kⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
CaCalcium
Caⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Caⓘ HewettiteCaV6O16 · 9H2O
VVanadium
Vⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Vⓘ HewettiteCaV6O16 · 9H2O
Vⓘ Montroseite(V3+,Fe3+)O(OH)
Vⓘ ParamontroseiteV4+O2
FeIron
Feⓘ Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Feⓘ Montroseite(V3+,Fe3+)O(OH)
UUranium
Uⓘ Uraninite var. PitchblendeUO2
Uⓘ UraniniteUO2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

mrdata.usgs.gov (n.d.) https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10108725
Weeks, A.D., Cisney, E.A., Sherwood, A.M. (1953) Montroseite, a New Vanadium Oxide from the Colorado Plateaus. U.S. Geological Survey, United States Department of the Interior, Trace Elements lnvestigations Report 335, 14 pages.
Breger, I.A., Deul, M. (1955) The Association of Uranium with Carbonaceous Materials on the Colorado Plateau, US Geological Survey, United States Department of the Interior, Trace Elements Investigations Report 539, 35 pages.
Weeks, A.D., Thompson, M.E., (1956) Identification and Occurrence of Uranium and Vanadium Minerals From the Colorado Plateaus, Geological Survey Bulletin 1009-B, 62 pages.
Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey
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