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Dexter Group, Calf Mesa, San Rafael District (San Rafael Swell), Emery Co., Utah, USA

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Latitude & Longitude (WGS84): 39° 2' 20'' North , 110° 42' 39'' West
Latitude & Longitude (decimal): 39.03914,-110.71102
GeoHash:G#: 9wcq0dyeq
Locality type:Group of Mines
Köppen climate type:BSk : Cold semi-arid (steppe) climate


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Regions containing this locality

Rocky Mountains, North America

Mountain Range - 2,039 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


24 valid minerals.

Detailed Mineral List:

Alunogen
Formula: Al2(SO4)3 · 17H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Butlerite
Formula: Fe3+(SO4)(OH) · 2H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Chalcocite
Formula: Cu2S
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Chalcopyrite
Formula: CuFeS2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Copiapite
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Coquimbite
Formula: Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Covellite
Formula: CuS
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Diadochite
Formula: Fe3+2(PO4)(SO4)(OH) · 5H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Fibroferrite
Formula: Fe3+(SO4)(OH) · 5H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah; Lombardo, Mariasole (2010) Fibroferrite: crystallographic, optical and synthesis experiments. MsC Thesis, Queens University, Ontario, Canada
Goldichite
Formula: KFe(SO4)2 · 4H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Halotrichite
Formula: FeAl2(SO4)4 · 22H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Metazeunerite
Formula: Cu(UO2)2(AsO4)2 · 8H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Parabutlerite
Formula: Fe3+(SO4)(OH) · 2H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Pyrite
Formula: FeS2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Römerite
Formula: Fe2+Fe3+2(SO4)4 · 14H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Sulphur
Formula: S8
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Tennantite
Formula: Cu6[Cu4(Fe,Zn)2]As4S13
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Uraninite
Formula: UO2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Uraninite var: Pitchblende
Formula: UO2
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Voltaite
Formula: K2Fe2+5Fe3+3Al(SO4)12 · 18H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Zeunerite
Formula: Cu(UO2)2(AsO4)2 · 12H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah
Zippeite
Formula: K3(UO2)4(SO4)2O3(OH) · 3H2O
Reference: UGMS Bull 117 Minerals and Mineral Localities of Utah

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
'Chalcocite'2.BA.05Cu2S
'Chalcopyrite'2.CB.10aCuFeS2
'Covellite'2.CA.05aCuS
Pyrite2.EB.05aFeS2
Tennantite2.GB.05Cu6[Cu4(Fe,Zn)2]As4S13
Tetrahedrite2.GB.05Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 4 - Oxides and Hydroxides
Uraninite4.DL.05UO2
var: Pitchblende4.DL.05UO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Alunogen'7.CB.45Al2(SO4)3 · 17H2O
'Butlerite'7.DC.10Fe3+(SO4)(OH) · 2H2O
'Chalcanthite'7.CB.20CuSO4 · 5H2O
'Copiapite'7.DB.35Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
'Coquimbite'7.CB.55Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
'Fibroferrite'7.DC.15Fe3+(SO4)(OH) · 5H2O
'Goldichite'7.CC.40KFe(SO4)2 · 4H2O
'Halotrichite'7.CB.85FeAl2(SO4)4 · 22H2O
'Melanterite'7.CB.35Fe2+(H2O)6SO4 · H2O
'Parabutlerite'7.DC.10Fe3+(SO4)(OH) · 2H2O
Römerite7.CB.75Fe2+Fe3+2(SO4)4 · 14H2O
Voltaite7.CC.25K2Fe2+5Fe3+3Al(SO4)12 · 18H2O
Zippeite7.EC.05K3(UO2)4(SO4)2O3(OH) · 3H2O
Group 8 - Phosphates, Arsenates and Vanadates
'Diadochite'8.DB.05Fe3+2(PO4)(SO4)(OH) · 5H2O
'Metazeunerite'8.EB.10Cu(UO2)2(AsO4)2 · 8H2O
Zeunerite8.EB.05Cu(UO2)2(AsO4)2 · 12H2O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Tennantite3.3.6.2Cu6[Cu4(Fe,Zn)2]As4S13
Tetrahedrite3.3.6.1Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AB(XO4)2·xH2O
Goldichite29.5.2.1KFe(SO4)2 · 4H2O
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
AB2(XO4)4·H2O
Halotrichite29.7.3.2FeAl2(SO4)4 · 22H2O
Römerite29.7.2.1Fe2+Fe3+2(SO4)4 · 14H2O
A2(XO4)3·H2O
Alunogen29.8.6.1Al2(SO4)3 · 17H2O
Coquimbite29.8.3.1Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Miscellaneous
Voltaite29.9.1.1K2Fe2+5Fe3+3Al(SO4)12 · 18H2O
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)(XO4)Zq·xH2O
Butlerite31.9.1.1Fe3+(SO4)(OH) · 2H2O
Fibroferrite31.9.12.1Fe3+(SO4)(OH) · 5H2O
Parabutlerite31.9.2.1Fe3+(SO4)(OH) · 2H2O
Miscellaneous
Copiapite31.10.5.1Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Zippeite31.10.4.1K3(UO2)4(SO4)2O3(OH) · 3H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Metazeunerite40.2a.14.2Cu(UO2)2(AsO4)2 · 8H2O
Zeunerite40.2a.14.1Cu(UO2)2(AsO4)2 · 12H2O
Group 43 - COMPOUND PHOSPHATES, ETC.
Hydrated Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Diadochite43.5.2.1Fe3+2(PO4)(SO4)(OH) · 5H2O
Unclassified Minerals, Rocks, etc.
Uraninite
var: Pitchblende
-UO2

List of minerals for each chemical element

HHydrogen
H AlunogenAl2(SO4)3 · 17H2O
H ButleriteFe3+(SO4)(OH) · 2H2O
H ChalcanthiteCuSO4 · 5H2O
H CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
H CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
H DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
H FibroferriteFe3+(SO4)(OH) · 5H2O
H GoldichiteKFe(SO4)2 · 4H2O
H HalotrichiteFeAl2(SO4)4 · 22H2O
H MelanteriteFe2+(H2O)6SO4 · H2O
H MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
H ParabutleriteFe3+(SO4)(OH) · 2H2O
H RömeriteFe2+Fe23+(SO4)4 · 14H2O
H VoltaiteK2Fe52+Fe33+Al(SO4)12 · 18H2O
H ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
H ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
OOxygen
O AlunogenAl2(SO4)3 · 17H2O
O ButleriteFe3+(SO4)(OH) · 2H2O
O ChalcanthiteCuSO4 · 5H2O
O CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
O CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
O DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
O FibroferriteFe3+(SO4)(OH) · 5H2O
O GoldichiteKFe(SO4)2 · 4H2O
O HalotrichiteFeAl2(SO4)4 · 22H2O
O MelanteriteFe2+(H2O)6SO4 · H2O
O MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
O ParabutleriteFe3+(SO4)(OH) · 2H2O
O Uraninite (var: Pitchblende)UO2
O RömeriteFe2+Fe23+(SO4)4 · 14H2O
O UraniniteUO2
O VoltaiteK2Fe52+Fe33+Al(SO4)12 · 18H2O
O ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
O ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
AlAluminium
Al AlunogenAl2(SO4)3 · 17H2O
Al HalotrichiteFeAl2(SO4)4 · 22H2O
Al VoltaiteK2Fe52+Fe33+Al(SO4)12 · 18H2O
PPhosphorus
P DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
SSulfur
S AlunogenAl2(SO4)3 · 17H2O
S ButleriteFe3+(SO4)(OH) · 2H2O
S ChalcanthiteCuSO4 · 5H2O
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
S CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
S CovelliteCuS
S DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
S FibroferriteFe3+(SO4)(OH) · 5H2O
S GoldichiteKFe(SO4)2 · 4H2O
S HalotrichiteFeAl2(SO4)4 · 22H2O
S MelanteriteFe2+(H2O)6SO4 · H2O
S ParabutleriteFe3+(SO4)(OH) · 2H2O
S PyriteFeS2
S RömeriteFe2+Fe23+(SO4)4 · 14H2O
S SulphurS8
S TennantiteCu6[Cu4(Fe,Zn)2]As4S13
S TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
S VoltaiteK2Fe52+Fe33+Al(SO4)12 · 18H2O
S ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
KPotassium
K GoldichiteKFe(SO4)2 · 4H2O
K VoltaiteK2Fe52+Fe33+Al(SO4)12 · 18H2O
K ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
FeIron
Fe ButleriteFe3+(SO4)(OH) · 2H2O
Fe ChalcopyriteCuFeS2
Fe CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Fe CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
Fe DiadochiteFe23+(PO4)(SO4)(OH) · 5H2O
Fe FibroferriteFe3+(SO4)(OH) · 5H2O
Fe GoldichiteKFe(SO4)2 · 4H2O
Fe HalotrichiteFeAl2(SO4)4 · 22H2O
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe ParabutleriteFe3+(SO4)(OH) · 2H2O
Fe PyriteFeS2
Fe RömeriteFe2+Fe23+(SO4)4 · 14H2O
Fe TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Fe VoltaiteK2Fe52+Fe33+Al(SO4)12 · 18H2O
CuCopper
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
Cu MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
Cu TennantiteCu6[Cu4(Fe,Zn)2]As4S13
Cu TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Cu ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
ZnZinc
Zn TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
AsArsenic
As MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
As TennantiteCu6[Cu4(Fe,Zn)2]As4S13
As ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
SbAntimony
Sb TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
UUranium
U MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
U Uraninite (var: Pitchblende)UO2
U UraniniteUO2
U ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
U ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Jurassic - Late Triassic
174.1 - 237 Ma



ID: 3185972
Mesozoic sedimentary rocks

Age: Mesozoic (174.1 - 237 Ma)

Lithology: Sandstone-conglomerate

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Late Triassic
201.3 - 237 Ma



ID: 2450889
Chinle Formation

Age: Late Triassic (201.3 - 237 Ma)

Stratigraphic Name: Chinle Formation

Description: Divisible into three members, in descending order: Church Rock Member – Reddish-brown to dark-brown, locally light-gray and greenish-gray, thin- to medium-bedded sandstone and shaly siltstone. Lenticular. Contains many ripple marks and mud cracks. Fluvial deposit. Ranges in thickness from 45 to 55 m (150 to 175 ft). Moss Black Member – Consists of light-gray to gray, thin- to medium-bedded crossbedded sandstone, conglomeratic sandstone, and sparse conglomerate. Minor interbedded mudstone. Lenticularity and extreme variability in bedding are common. Chiefly granules and pebbles of quartz, quartzite, and chert in a well-cemented matrix of medium to coarse sand. Much fossil wood. Cliff and bench former. Fluvial deposit. In the past, these units have been mapped as the Shinarump Conglomerate (Gilluly, 1929, pl. 30). Temple Mountain Member – In places, lowermost beds of Chinle are altered and marked by purple and white mottles. This purple-white zone, described and named by Finch (1953), locally extends below basal part of the Chinle into uppermost beds of underlying Moenkopi Formation. Combined thickness of Moss Back and Temple Mountain Members ranges from 20 to 55 m (70 to 175 ft).

Reference: Witkin, I.J. Geologic map of the Huntington 30′ x 60′ quadrangle, Carbon, Emery, Grand, and Uintah Counties, Utah. Utah Geological Survey Open-File Report 440D. [66]

Late Triassic
201.3 - 237 Ma



ID: 3019972
Chinle Shale and Shinarump Conglomerate Member

Age: Late Triassic (201.3 - 237 Ma)

Stratigraphic Name: Shinarump Conglomerate Member

Description: continental deposits: fluvial channel, floodplain, marsh, lake

Comments: Original map source: Hintze, L.F., Willis, G.C., Laes, D.Y.M., Sprinkel, D.A., and Brown, K.D., 2000, Digital Geologic Map of Utah: Utah Geological Survey, Map 179DM, scale 1:500,000.

Lithology: Major:{sandstone mudstone}, Minor:{conglomerate}, Incidental:{limestone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Utah Geological and Mineralogical Society Bulletin 84 (1970), p. 12.

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