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Spor Mountain, Thomas Range, Juab Co., Utah, USAi
Regional Level Types
Spor MountainMountain
Thomas RangeMountain Range
Juab Co.County
UtahState
USACountry

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Key
Latitude & Longitude (WGS84):
39° 44' 54'' North , 113° 10' 56'' West
Latitude & Longitude (decimal):
Locality type:
Other/historical names associated with this locality:
Spor Mountain District


A N-S-trending, linear, detached summit on the western margin of the Thomas Range.

Mineralization is beryllium, fluorite and uranium mineral deposits hosted in Mio-Pliocene volcanic rocks (tuffs, breccias, rhyolite and rhyodacite intrusions in a Paleozoic sedimentary series). The fluorite is massive, in varying shades of purple, showing box-work structure. These volcanic formations are F/Be-mineralized.

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

25 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

Bertrandite
Formula: Be4(Si2O7)(OH)2
Localities: Reported from at least 23 localities in this region.
Beryl
Formula: Be3Al2(Si6O18)
Beryl var: Morganite ?
Formula: Be3Al2(Si6O18)
Description: Probably fluorite included beryl
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Calcite
Formula: CaCO3
Localities: Reported from at least 6 localities in this region.
'Carbonate'
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Localities: Reported from at least 22 localities in this region.
Chalcopyrite
Formula: CuFeS2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
'Clinoptilolite'
Localities: Reported from at least 9 localities in this region.
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Cristobalite
Formula: SiO2
Reference: Montoya, Havens, and Bridges (1962)
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 6 localities in this region.
Fluorite
Formula: CaF2
Localities: Reported from at least 37 localities in this region.
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah; Andrew Haighton
Fluorite var: Tiffany stone
Formula: CaF2
Reference: Brian Cowger
Hectorite
Formula: Na0.3(Mg,Li)3(Si4O10)(F,OH)2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Hematite
Formula: Fe2O3
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Thurston, W. R.; Staatz, M. H.; Cox, D. C. (1954) Fluorspar deposits of Utah. USGS Bulletin: 1005
'Limonite'
Formula: (Fe,O,OH,H2O)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Malachite
Formula: Cu2(CO3)(OH)2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
'Manganese Oxides'
Reference: SLIDES OF THE FLUORSPAR, BERYLLIUM, AND URANIUM DEPOSITS AT SPOR MOUNTAIN, UTAH by David A. Lindsey
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Localities: Reported from at least 16 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Thurston, W. R.; Staatz, M. H.; Cox, D. C. (1954) Fluorspar deposits of Utah. USGS Bulletin: 1005
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Thurston, W. R.; Staatz, M. H.; Cox, D. C. (1954) Fluorspar deposits of Utah. USGS Bulletin: 1005
Opal
Formula: SiO2 · nH2O
Opal var: Hyalite
Formula: SiO2 · nH2O
Reference: Rockpick Legend
Pyrite
Formula: FeS2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Pyrolusite
Formula: Mn4+O2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Quartz
Formula: SiO2
Localities: Reported from at least 23 localities in this region.
Quartz var: Chalcedony
Formula: SiO2
Localities: Reported from at least 14 localities in this region.
Sanidine
Formula: K(AlSi3O8)
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Reference: Montoya, Havens, and Bridges (1962)
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Thurston, W. R.; Staatz, M. H.; Cox, D. C. (1954) Fluorspar deposits of Utah. USGS Bulletin: 1005
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Uranophane-β
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: SLIDES OF THE FLUORSPAR, BERYLLIUM, AND URANIUM DEPOSITS AT SPOR MOUNTAIN, UTAH by David A. Lindsey
Weeksite
Formula: K2(UO2)2(Si5O13) · 4H2O
Reference: SLIDES OF THE FLUORSPAR, BERYLLIUM, AND URANIUM DEPOSITS AT SPOR MOUNTAIN, UTAH by David A. Lindsey

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
var: Tiffany stone3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Cristobalite4.DA.15SiO2
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
var: Hyalite4.DA.10SiO2 · nH2O
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Morganite ?9.CJ.05Be3Al2(Si6O18)
Hectorite9.EC.45Na0.3(Mg,Li)3(Si4O10)(F,OH)2
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Sanidine9.FA.30K(AlSi3O8)
Saponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Topaz9.AF.35Al2(SiO4)(F,OH)2
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Weeksite9.AK.30K2(UO2)2(Si5O13) · 4H2O
Unclassified Minerals, Rocks, etc.
'Carbonate'-
'Clinoptilolite'-
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Carnotite40.2a.28.1K2(UO2)2(VO4)2 · 3H2O
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β53.3.1.9Ca(UO2)2(SiO3OH)2 · 5H2O
Weeksite53.3.2.1K2(UO2)2(Si5O13) · 4H2O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Bertrandite56.1.1.1Be4(Si2O7)(OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Sheets of 6-membered rings with 2:1 clays
Hectorite71.3.1b.4Na0.3(Mg,Li)3(Si4O10)(F,OH)2
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Saponite71.3.1b.2Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Sanidine76.1.1.2K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Beryl
var: Morganite ?
-Be3Al2(Si6O18)
'Carbonate'-
'Clinoptilolite'-
Fluorite
var: Tiffany stone
-CaF2
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
Opal
var: Hyalite
-SiO2 · nH2O
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

HHydrogen
H BertranditeBe4(Si2O7)(OH)2
H HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H MalachiteCu2(CO3)(OH)2
H Limonite(Fe,O,OH,H2O)
H OpalSiO2 · nH2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H KaoliniteAl2(Si2O5)(OH)4
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H TopazAl2(SiO4)(F,OH)2
H Opal (var: Hyalite)SiO2 · nH2O
H WeeksiteK2(UO2)2(Si5O13) · 4H2O
H Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
H SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
H MuscoviteKAl2(AlSi3O10)(OH)2
LiLithium
Li HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
BeBeryllium
Be BertranditeBe4(Si2O7)(OH)2
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Morganite)Be3Al2(Si6O18)
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
C DolomiteCaMg(CO3)2
OOxygen
O BertranditeBe4(Si2O7)(OH)2
O HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O Quartz (var: Chalcedony)SiO2
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O QuartzSiO2
O CalciteCaCO3
O MalachiteCu2(CO3)(OH)2
O SanidineK(AlSi3O8)
O Limonite(Fe,O,OH,H2O)
O PyrolusiteMn4+O2
O OpalSiO2 · nH2O
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O BerylBe3Al2(Si6O18)
O KaoliniteAl2(Si2O5)(OH)4
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O TopazAl2(SiO4)(F,OH)2
O Opal (var: Hyalite)SiO2 · nH2O
O WeeksiteK2(UO2)2(Si5O13) · 4H2O
O Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
O CristobaliteSiO2
O SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
O MuscoviteKAl2(AlSi3O10)(OH)2
O DolomiteCaMg(CO3)2
O Beryl (var: Morganite)Be3Al2(Si6O18)
FFluorine
F FluoriteCaF2
F HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
F TopazAl2(SiO4)(F,OH)2
F Fluorite (var: Tiffany stone)CaF2
NaSodium
Na HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
Mg HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Mg DolomiteCaMg(CO3)2
AlAluminium
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al SanidineK(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al KaoliniteAl2(Si2O5)(OH)4
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al TopazAl2(SiO4)(F,OH)2
Al SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Beryl (var: Morganite)Be3Al2(Si6O18)
SiSilicon
Si BertranditeBe4(Si2O7)(OH)2
Si HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
Si Quartz (var: Chalcedony)SiO2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si QuartzSiO2
Si SanidineK(AlSi3O8)
Si OpalSiO2 · nH2O
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si BerylBe3Al2(Si6O18)
Si KaoliniteAl2(Si2O5)(OH)4
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si TopazAl2(SiO4)(F,OH)2
Si Opal (var: Hyalite)SiO2 · nH2O
Si WeeksiteK2(UO2)2(Si5O13) · 4H2O
Si Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
Si CristobaliteSiO2
Si SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Beryl (var: Morganite)Be3Al2(Si6O18)
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
K SanidineK(AlSi3O8)
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K WeeksiteK2(UO2)2(Si5O13) · 4H2O
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca FluoriteCaF2
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca CalciteCaCO3
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca Fluorite (var: Tiffany stone)CaF2
Ca Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
Ca SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Ca DolomiteCaMg(CO3)2
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
MnManganese
Mn PyrolusiteMn4+O2
FeIron
Fe ChalcopyriteCuFeS2
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
UUranium
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
U WeeksiteK2(UO2)2(Si5O13) · 4H2O
U Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Thurston, W. R.; Staatz, M. H.; Cox, D. C. (1954), Fluorspar deposits of Utah. USGS Bulletin: 1005.
Economic Geology (1961): 36: 941-950.
Griffitts, W. R., and Rader, L. F., Jr., 1963, Beryllium and fluorine in mineralized tuff, Spor Mountain, Juab County, Utah: U. S. Geological Survey Professional Paper 476-B, p. B16-B17.
Williams, N. C., 1963, Beryllium deposits, Spor Mountain, Utah, in Sharp, B. J., and N. C. Williams, N. C., eds., Beryllium and uranium mineralization in western Juab County, Utah: Utah Geological Society Guidebook to the Geology of Utah, no. 17, p. 36-59.
Bullock, Kenneth C. (1981), Geology of the Fluorite Occurrences, Spor Mountain, Juab County, Utah, Geological and Mineral Survey of Utah, Special Studies 53.
Minerals and Mineral Localities of Utah, UGMS Bull 117.

USGS MRDS Record: 10400503

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Thomas_Range
Wikidata ID:Q7793408

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