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Lemhi Pass Mining District, Lemhi County, Idaho, USAi
Regional Level Types
Lemhi Pass Mining DistrictMining District
Lemhi CountyCounty
IdahoState
USACountry

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Latitude & Longitude:
44° North , 113° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~120km
GRN:
N30W59
Type:
Mining District
Mindat Locality ID:
39593
Long-form identifier:
mindat:1:2:39593:8
GUID (UUID V4):
e0d6d72f-d3a2-4587-9b7d-bf72214fad8a


Also silver minerals. May be equivalent to McDevitt district.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘ'Allanite Group'
Formula:(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘAnatase
Formula:TiO2
ⓘ'Apatite'
Formula:Ca5(PO4)3(Cl/F/OH)
ⓘAugite
Formula:(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAzurite
Formula:Cu3(CO3)2(OH)2
ⓘBaryte
Formula:BaSO4
ⓘ'Bastnäsite'
Formula:(Ce/Nd/Y/REE)(CO3)F
ⓘ'Biotite'
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘBornite
Formula:Cu5FeS4
ⓘBrockite
Formula:(Ca,Th,Ce)PO4 · H2O
ⓘBrookite
Formula:TiO2
ⓘCalcite
Formula:CaCO3
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
ⓘ'Chlorite Group'
ⓘCopper
Formula:Cu
ⓘCovellite
Formula:CuS
ⓘCuprite
Formula:Cu2O
ⓘDiopside
Formula:CaMgSi2O6
ⓘDolomite
Formula:CaMg(CO3)2
ⓘEuxenite-(Y)
Formula:(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘFluorite
Formula:CaF2
ⓘGalena
Formula:PbS
ⓘ'Garnet Group'
Formula:X3Z2(SiO4)3
ⓘGoethite
Formula:α-Fe3+O(OH)
Localities: Reported from at least9 localities in this region.
ⓘGold
Formula:Au
ⓘHematite
Formula:Fe2O3
Localities: Reported from at least7 localities in this region.
ⓘHematite var. Specularite
Formula:Fe2O3
ⓘJarosite
Formula:KFe3+3(SO4)2(OH)6
ⓘ'K Feldspar'
ⓘLepidocrocite
Formula:γ-Fe3+O(OH)
ⓘ'Limonite'
ⓘMagnetite
Formula:Fe2+Fe3+2O4
Localities: Reported from at least9 localities in this region.
ⓘMalachite
Formula:Cu2(CO3)(OH)2
ⓘMicrocline
Formula:K(AlSi3O8)
Localities: Reported from at least7 localities in this region.
ⓘMolybdenite
Formula:MoS2
ⓘ'Monazite Group'
Formula:REE(PO4)
Localities: Reported from at least6 localities in this region.
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Sericite
Formula:KAl2(AlSi3O10)(OH)2
ⓘ'Plagioclase'
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Psilomelane'
ⓘPyrite
Formula:FeS2
Localities: Reported from at least6 localities in this region.
ⓘPyrolusite
Formula:Mn4+O2
ⓘPyromorphite
Formula:Pb5(PO4)3Cl
ⓘPyrrhotite
Formula:Fe1-xS
ⓘQuartz
Formula:SiO2
Localities: Reported from at least11 localities in this region.
ⓘQuartz var. Chalcedony
Formula:SiO2
ⓘRutile
Formula:TiO2
Localities: Reported from at least10 localities in this region.
ⓘSphalerite
Formula:ZnS
ⓘStaurolite
Formula:Fe2+2Al9Si4O23(OH)
ⓘ'Synchysite'
Formula:Ca(Ce/Nd/Y/REE)(CO3)2F
ⓘSynchysite-(Y)
Formula:CaY(CO3)2F
ⓘThorite
Formula:Th(SiO4)
Localities: Reported from at least12 localities in this region.
ⓘ'Tourmaline'
Formula:AD3G6 (T6O18)(BO3)3X3Z
ⓘWulfenite
Formula:Pb(MoO4)
ⓘXenotime-(Y)
Formula:Y(PO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘCopper1.AA.05Cu
ⓘGold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.α-Fe3+O(OH)
ⓘCuprite4.AA.10Cu2O
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘvar. Specularite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘRutile4.DB.05TiO2
ⓘAnatase4.DD.05TiO2
ⓘBrookite4.DD.10TiO2
ⓘEuxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘLepidocrocite4.FE.15γ-Fe3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘSynchysite-(Y)5.BD.20cCaY(CO3)2F
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘWulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘXenotime-(Y)8.AD.35Y(PO4)
ⓘPyromorphite8.BN.05Pb5(PO4)3Cl
ⓘBrockite8.CJ.45(Ca,Th,Ce)PO4 · H2O
Group 9 - Silicates
ⓘThorite9.AD.30Th(SiO4)
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMicrocline9.FA.30K(AlSi3O8)
Unclassified
ⓘ'Bastnäsite'-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Psilomelane'-
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Synchysite'-Ca(Ce/Nd/Y/REE)(CO3)2F
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
HⓘAzuriteCu3(CO3)2(OH)2
HⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
HⓘBrockite(Ca,Th,Ce)PO4 · H2O
HⓘGoethiteα-Fe3+O(OH)
HⓘJarositeKFe33+(SO4)2(OH)6
HⓘLepidocrociteγ-Fe3+O(OH)
HⓘMalachiteCu2(CO3)(OH)2
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
HⓘStauroliteFe22+Al9Si4O23(OH)
HⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
HⓘApatiteCa5(PO4)3(Cl/F/OH)
HⓘAllanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
BBoron
BⓘTourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
CⓘAzuriteCu3(CO3)2(OH)2
CⓘBastnäsite(Ce/Nd/Y/REE)(CO3)F
CⓘCalciteCaCO3
CⓘDolomiteCaMg(CO3)2
CⓘMalachiteCu2(CO3)(OH)2
CⓘSynchysite-(Y)CaY(CO3)2F
CⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
OOxygen
OⓘAnataseTiO2
OⓘAugite(CaxMgyFez)(Mgy1Fez1)Si2O6
OⓘAzuriteCu3(CO3)2(OH)2
OⓘBaryteBaSO4
OⓘBastnäsite(Ce/Nd/Y/REE)(CO3)F
OⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
OⓘBrockite(Ca,Th,Ce)PO4 · H2O
OⓘBrookiteTiO2
OⓘCalciteCaCO3
OⓘQuartz var.ChalcedonySiO2
OⓘCupriteCu2O
OⓘDiopsideCaMgSi2O6
OⓘDolomiteCaMg(CO3)2
OⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
OⓘGoethiteα-Fe3+O(OH)
OⓘHematiteFe2O3
OⓘJarositeKFe33+(SO4)2(OH)6
OⓘLepidocrociteγ-Fe3+O(OH)
OⓘMagnetiteFe2+Fe23+O4
OⓘMalachiteCu2(CO3)(OH)2
OⓘMicroclineK(AlSi3O8)
OⓘMonazite GroupREE(PO4)
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘPyrolusiteMn4+O2
OⓘPyromorphitePb5(PO4)3Cl
OⓘQuartzSiO2
OⓘRutileTiO2
OⓘStauroliteFe22+Al9Si4O23(OH)
OⓘSynchysite-(Y)CaY(CO3)2F
OⓘThoriteTh(SiO4)
OⓘTourmalineAD3G6 (T6O18)(BO3)3X3Z
OⓘWulfenitePb(MoO4)
OⓘXenotime-(Y)Y(PO4)
OⓘHematite var.SpeculariteFe2O3
OⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
OⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
OⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
OⓘGarnet GroupX3Z2(SiO4)3
OⓘApatiteCa5(PO4)3(Cl/F/OH)
OⓘAllanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
FⓘBastnäsite(Ce/Nd/Y/REE)(CO3)F
FⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FⓘFluoriteCaF2
FⓘSynchysite-(Y)CaY(CO3)2F
FⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
FⓘApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
NaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
MgⓘAugite(CaxMgyFez)(Mgy1Fez1)Si2O6
MgⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgⓘDiopsideCaMgSi2O6
MgⓘDolomiteCaMg(CO3)2
AlAluminium
AlⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlⓘMicroclineK(AlSi3O8)
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘStauroliteFe22+Al9Si4O23(OH)
AlⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
AlⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
SiⓘAugite(CaxMgyFez)(Mgy1Fez1)Si2O6
SiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
SiⓘQuartz var.ChalcedonySiO2
SiⓘDiopsideCaMgSi2O6
SiⓘMicroclineK(AlSi3O8)
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘQuartzSiO2
SiⓘStauroliteFe22+Al9Si4O23(OH)
SiⓘThoriteTh(SiO4)
SiⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
SiⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiⓘGarnet GroupX3Z2(SiO4)3
SiⓘAllanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
PⓘBrockite(Ca,Th,Ce)PO4 · H2O
PⓘMonazite GroupREE(PO4)
PⓘPyromorphitePb5(PO4)3Cl
PⓘXenotime-(Y)Y(PO4)
PⓘApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
SⓘBaryteBaSO4
SⓘBorniteCu5FeS4
SⓘChalcopyriteCuFeS2
SⓘChalcociteCu2S
SⓘCovelliteCuS
SⓘGalenaPbS
SⓘJarositeKFe33+(SO4)2(OH)6
SⓘMolybdeniteMoS2
SⓘPyriteFeS2
SⓘPyrrhotiteFe1-xS
SⓘSphaleriteZnS
ClChlorine
ClⓘPyromorphitePb5(PO4)3Cl
ClⓘApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
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ⓘMuscovite var.SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
CaⓘAugite(CaxMgyFez)(Mgy1Fez1)Si2O6
CaⓘBrockite(Ca,Th,Ce)PO4 · H2O
CaⓘCalciteCaCO3
CaⓘDiopsideCaMgSi2O6
CaⓘDolomiteCaMg(CO3)2
CaⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CaⓘFluoriteCaF2
CaⓘSynchysite-(Y)CaY(CO3)2F
CaⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
CaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
CaⓘApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
TiⓘAnataseTiO2
TiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
TiⓘBrookiteTiO2
TiⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TiⓘRutileTiO2
MnManganese
MnⓘPyrolusiteMn4+O2
FeIron
FeⓘAugite(CaxMgyFez)(Mgy1Fez1)Si2O6
FeⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeⓘBorniteCu5FeS4
FeⓘChalcopyriteCuFeS2
FeⓘGoethiteα-Fe3+O(OH)
FeⓘHematiteFe2O3
FeⓘJarositeKFe33+(SO4)2(OH)6
FeⓘLepidocrociteγ-Fe3+O(OH)
FeⓘMagnetiteFe2+Fe23+O4
FeⓘPyriteFeS2
FeⓘPyrrhotiteFe1-xS
FeⓘStauroliteFe22+Al9Si4O23(OH)
FeⓘHematite var.SpeculariteFe2O3
CuCopper
CuⓘAzuriteCu3(CO3)2(OH)2
CuⓘBorniteCu5FeS4
CuⓘChalcopyriteCuFeS2
CuⓘChalcociteCu2S
CuⓘCovelliteCuS
CuⓘCupriteCu2O
CuⓘCopperCu
CuⓘMalachiteCu2(CO3)(OH)2
ZnZinc
ZnⓘSphaleriteZnS
YYttrium
YⓘBastnäsite(Ce/Nd/Y/REE)(CO3)F
YⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
YⓘSynchysite-(Y)CaY(CO3)2F
YⓘXenotime-(Y)Y(PO4)
YⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
NbNiobium
NbⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MoMolybdenum
MoⓘMolybdeniteMoS2
MoⓘWulfenitePb(MoO4)
BaBarium
BaⓘBaryteBaSO4
CeCerium
CeⓘBastnäsite(Ce/Nd/Y/REE)(CO3)F
CeⓘBrockite(Ca,Th,Ce)PO4 · H2O
CeⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CeⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
NdNeodymium
NdⓘBastnäsite(Ce/Nd/Y/REE)(CO3)F
NdⓘSynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
TaTantalum
TaⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
AuGold
AuⓘGoldAu
PbLead
PbⓘGalenaPbS
PbⓘPyromorphitePb5(PO4)3Cl
PbⓘWulfenitePb(MoO4)
ThThorium
ThⓘBrockite(Ca,Th,Ce)PO4 · H2O
ThⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThⓘThoriteTh(SiO4)
UUranium
UⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Geochronology

Mineralization age:Late/Upper Cretaceous : 99 Ma to 90 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Mesozoic
  Cretaceous
   Late/Upper Cretaceous
ⓘ Monazite Group (youngest age)90 Ma
ⓘ Monazite Group (oldest age)99 Ma

Localities in this Region

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate
North America Plate

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