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Stanley Basin Mining District, Custer County, Idaho, USAi
Regional Level Types
Stanley Basin Mining DistrictMining District
Custer CountyCounty
IdahoState
USACountry

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Mindat Locality ID:
68967
Long-form identifier:
mindat:1:2:68967:9
GUID (UUID V4):
0


The Stanley uranium district in central Idaho produced a modest amount of uranium ore from 1957 to 1962. The district consisted of at least 27 uranium mines and prospect claim groups across a 10-mi2 area, located a few miles northeast of the town of Stanley. The average grade (about 0.18 percent U3O8) of the uranium deposits mined in the district was comparable to other U.S. producers, but its output (no more than 8,000 tons of uranium ore per year) and its mines were relatively small.
In the district, the uranium deposits occur in two geologic settings: (1) as disseminated uranium minerals within fluvial-channel arkosic sandstones and conglomerates that rest upon the eroded surface of the Cretaceous Idaho batholith and below the Eocene Challis Volcanic Group and (2) as pockets of uranium minerals in silicified fractures that cut through the granitoid batholithic rocks. The largest uranium deposits—which had the largest mines of the district, all open-pit operations—are the strata-bound, sedimentary rock–hosted type.

Select Mineral List Type

Standard Detailed Gallery Strunz 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

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

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Abernathyite
Formula: K(UO2)(AsO4) · 3H2O
Arsenopyrite
Formula: FeAsS
Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Brannerite (TL)
Formula: UTi2O6
Calcite
Formula: CaCO3
Cervantite
Formula: Sb3+Sb5+O4
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Cinnabar
Formula: HgS
Coffinite
Formula: U(SiO4) · nH2O
Dewindtite
Formula: H2Pb3(UO2)6O4(PO4)4 · 12H2O
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Fluorite
Formula: CaF2
Localities: Reported from at least 9 localities in this region.
Galena
Formula: PbS
'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 11 localities in this region.
Graphite
Formula: C
Hematite
Formula: Fe2O3
Localities: Reported from at least 11 localities in this region.
Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 12 localities in this region.
Jarosite
Formula: KFe3+3(SO4)2(OH)6
Kaolinite
Formula: Al2(Si2O5)(OH)4
'Limonite'
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 11 localities in this region.
Malachite
Formula: Cu2(CO3)(OH)2
Marcasite
Formula: FeS2
Microcline
Formula: K(AlSi3O8)
Molybdenite
Formula: MoS2
'Monazite Group'
Formula: REE(PO4)
Localities: Reported from at least 12 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Native Gold
Formula: Au
Localities: Reported from at least 9 localities in this region.
Native Silver
Formula: Ag
Native Silver var. Amalgam
Formula: (Ag,Hg)
Orthoclase
Formula: K(AlSi3O8)
Phosphuranylite
Formula: KCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Powellite
Formula: Ca(MoO4)
Pyrite
Formula: FeS2
Localities: Reported from at least 13 localities in this region.
Quartz
Formula: SiO2
Localities: Reported from at least 18 localities in this region.
Quartz var. Chalcedony
Formula: SiO2
Localities: Reported from at least 7 localities in this region.
Rutile
Formula: TiO2
Scheelite
Formula: Ca(WO4)
Sphalerite
Formula: ZnS
Stibnite
Formula: Sb2S3
Localities: Reported from at least 6 localities in this region.
Sylvanite
Formula: AgAuTe4
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Titanite
Formula: CaTi(SiO4)O
Localities: Reported from at least 11 localities in this region.
Uraninite
Formula: UO2
Localities: Reported from at least 17 localities in this region.
Uraninite var. Pitchblende
Formula: UO2
Localities: Reported from at least 11 localities in this region.
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Xenotime-(Y)
Formula: Y(PO4)
Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 11 localities in this region.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Silver
var. Amalgam
1.AA.05(Ag,Hg)
Native Gold1.AA.05Au
Native Silver1.AA.05Ag
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Cinnabar2.CD.15aHgS
Stibnite2.DB.05Sb2S3
Sylvanite2.EA.05AgAuTe4
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Arsenopyrite2.EB.20FeAsS
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Quartz
var. Chalcedony
4.DA.05SiO2
4.DA.05SiO2
Rutile4.DB.05TiO2
Cervantite4.DE.30Sb3+Sb5+O4
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Brannerite (TL)4.DH.05UTi2O6
Uraninite
var. Pitchblende
4.DL.05UO2
4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Powellite7.GA.05Ca(MoO4)
Scheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Autunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Abernathyite8.EB.15K(UO2)(AsO4) · 3H2O
Dewindtite8.EC.10H2Pb3(UO2)6O4(PO4)4 · 12H2O
Phosphuranylite8.EC.10KCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Group 9 - Silicates
Coffinite9.AD.30U(SiO4) · nH2O
Zircon9.AD.30Zr(SiO4)
Titanite9.AG.15CaTi(SiO4)O
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Microcline9.FA.30K(AlSi3O8)
Orthoclase9.FA.30K(AlSi3O8)
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Chlorite Group'-
'Limonite'-
'Monazite Group'-REE(PO4)
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
H AbernathyiteK(UO2)(AsO4) · 3H2O
H AutuniteCa(UO2)2(PO4)2 · 10-12H2O
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H CoffiniteU(SiO4) · nH2O
H DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
H JarositeKFe33+(SO4)2(OH)6
H KaoliniteAl2(Si2O5)(OH)4
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CCarbon
C CalciteCaCO3
C GraphiteC
C MalachiteCu2(CO3)(OH)2
OOxygen
O AbernathyiteK(UO2)(AsO4) · 3H2O
O AutuniteCa(UO2)2(PO4)2 · 10-12H2O
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O BranneriteUTi2O6
O CalciteCaCO3
O CervantiteSb3+Sb5+O4
O Quartz var. ChalcedonySiO2
O CoffiniteU(SiO4) · nH2O
O DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O HematiteFe2O3
O IlmeniteFe2+TiO3
O JarositeKFe33+(SO4)2(OH)6
O KaoliniteAl2(Si2O5)(OH)4
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O MicroclineK(AlSi3O8)
O Monazite GroupREE(PO4)
O MuscoviteKAl2(AlSi3O10)(OH)2
O OrthoclaseK(AlSi3O8)
O PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
O Uraninite var. PitchblendeUO2
O PowelliteCa(MoO4)
O QuartzSiO2
O RutileTiO2
O ScheeliteCa(WO4)
O TitaniteCaTi(SiO4)O
O UraniniteUO2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
O Xenotime-(Y)Y(PO4)
O ZirconZr(SiO4)
O Garnet GroupX3Z2(SiO4)3
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F FluoriteCaF2
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mg VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al KaoliniteAl2(Si2O5)(OH)4
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al OrthoclaseK(AlSi3O8)
Al VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiSilicon
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si Quartz var. ChalcedonySiO2
Si CoffiniteU(SiO4) · nH2O
Si KaoliniteAl2(Si2O5)(OH)4
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Si ZirconZr(SiO4)
Si Garnet GroupX3Z2(SiO4)3
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 10-12H2O
P DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
P Monazite GroupREE(PO4)
P PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
P Xenotime-(Y)Y(PO4)
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S CinnabarHgS
S GalenaPbS
S JarositeKFe33+(SO4)2(OH)6
S MarcasiteFeS2
S MolybdeniteMoS2
S PyriteFeS2
S SphaleriteZnS
S StibniteSb2S3
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
K AbernathyiteK(UO2)(AsO4) · 3H2O
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K JarositeKFe33+(SO4)2(OH)6
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K OrthoclaseK(AlSi3O8)
K PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
CaCalcium
Ca AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Ca CalciteCaCO3
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ca FluoriteCaF2
Ca PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Ca PowelliteCa(MoO4)
Ca ScheeliteCa(WO4)
Ca TitaniteCaTi(SiO4)O
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti BranneriteUTi2O6
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
FeIron
Fe ArsenopyriteFeAsS
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe ChalcopyriteCuFeS2
Fe HematiteFe2O3
Fe IlmeniteFe2+TiO3
Fe JarositeKFe33+(SO4)2(OH)6
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As AbernathyiteK(UO2)(AsO4) · 3H2O
As ArsenopyriteFeAsS
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MoMolybdenum
Mo MolybdeniteMoS2
Mo PowelliteCa(MoO4)
AgSilver
Ag Native Silver var. Amalgam(Ag,Hg)
Ag Native SilverAg
Ag SylvaniteAgAuTe4
SbAntimony
Sb CervantiteSb3+Sb5+O4
Sb StibniteSb2S3
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TeTellurium
Te SylvaniteAgAuTe4
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
WTungsten
W ScheeliteCa(WO4)
AuGold
Au Native GoldAu
Au SylvaniteAgAuTe4
HgMercury
Hg Native Silver var. Amalgam(Ag,Hg)
Hg CinnabarHgS
PbLead
Pb DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
Pb GalenaPbS
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
U AbernathyiteK(UO2)(AsO4) · 3H2O
U AutuniteCa(UO2)2(PO4)2 · 10-12H2O
U BranneriteUTi2O6
U CoffiniteU(SiO4) · nH2O
U DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2O
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
U PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
U Uraninite var. PitchblendeUO2
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

Fossils

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Localities in this Region

Other Regions, Features and Areas that Intersect

North America Plate
USA

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