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Zortman-Landusky Mine (Zortman Mine), Little Rockies Mining District, Phillips County, Montana, USAi
Regional Level Types
Zortman-Landusky Mine (Zortman Mine)Mine
Little Rockies Mining DistrictMining District
Phillips CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
47° North , 108° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~6km
Type:
Kรถppen climate type:
Mindat Locality ID:
26780
Long-form identifier:
mindat:1:2:26780:2
GUID (UUID V4):
0


An open pit gold mine owned by Pegasus Gold, Inc.
Gold was extracted by cyanide heap-leaching.

In the Zortman deposit, mineralisation occurs predominantly at the intersection of north- and northwesttrending fractures, although there is a preferential alignment of orebodies with north-trending faults. Minor mineralisation is aligned in an ENE direction, which parallels the orientation of the Montana lineament. Hydromagmatic breccias associated with mineralisation vary from being clast dominant to matrix dominant.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

37 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:

โ“˜ Acanthite
Formula: Ag2S
โ“˜ Arsenopyrite
Formula: FeAsS
โ“˜ Calaverite
Formula: AuTe2
โ“˜ 'Calcium Amphibole Subgroup'
Formula: AnCa2(C2+5-mC3+m)(Si8-(n+m)Al(n+m))W2
โ“˜ 'Calcium Amphibole Subgroup var. Hornblende'
Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
โ“˜ Cervelleite
Formula: Ag4TeS
โ“˜ Chalcopyrite
Formula: CuFeS2
โ“˜ 'Chlorite Group'
โ“˜ Corundum
Formula: Al2O3
โ“˜ Corundum var. Ruby
Formula: Al2O3
โ“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜ 'Feldspar Group'
โ“˜ Fluorite
Formula: CaF2
โ“˜ 'Freibergite Subgroup'
Formula: (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
โ“˜ Galena
Formula: PbS
โ“˜ Goethite
Formula: Fe3+O(OH)
โ“˜ Greigite
Formula: Fe2+Fe3+2S4
โ“˜ Hematite
Formula: Fe2O3
โ“˜ Hessite
Formula: Ag2Te
โ“˜ Jalpaite
Formula: Ag3CuS2
โ“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
โ“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
โ“˜ 'K Feldspar'
โ“˜ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
โ“˜ Krennerite
Formula: Au3AgTe8
โ“˜ 'Leucoxene'
โ“˜ Marcasite
Formula: FeS2
โ“˜ 'Melnikovite'
โ“˜ Melonite
Formula: NiTe2
โ“˜ 'Mica Group'
โ“˜ Microcline
Formula: K(AlSi3O8)
โ“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
โ“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Native Gold
Formula: Au
โ“˜ Native Silver
Formula: Ag
โ“˜ Native Tellurium
Formula: Te
โ“˜ Opal
Formula: SiO2 · nH2O
โ“˜ Opal var. Opaline
Formula: SiO2 · nH2O
โ“˜ Orthoclase
Formula: K(AlSi3O8)
โ“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
โ“˜ Polybasite
Formula: [Ag6Sb2S7][Ag9CuS4]
โ“˜ Pyrite
Formula: FeS2
โ“˜ Quartz
Formula: SiO2
โ“˜ Rickardite
Formula: Cu7Te5
โ“˜ Rutile
Formula: TiO2
โ“˜ 'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
โ“˜ Sphalerite
Formula: ZnS
โ“˜ Stromeyerite
Formula: AgCuS
โ“˜ Stรผtzite
Formula: Ag5-xTe3, x = 0.24-0.36
โ“˜ Sylvanite
Formula: AgAuTe4
โ“˜ Tellurobismuthite
Formula: Bi2Te3
โ“˜ 'UM2009-//-CN:FeHKZn'
Formula: (Na,K)2Zn3[Fe(CN)6]2 · nH2O
โ“˜ Weissite
Formula: Cu2-xTe

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Native Gold1.AA.05Au
โ“˜Native Silver1.AA.05Ag
โ“˜Native Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
โ“˜Rickardite2.BA.30Cu7Te5
โ“˜Weissite2.BA.30Cu2-xTe
โ“˜Acanthite2.BA.35Ag2S
โ“˜Stromeyerite2.BA.40AgCuS
โ“˜Jalpaite2.BA.45Ag3CuS2
โ“˜Cervelleite2.BA.60Ag4TeS
โ“˜Hessite2.BA.60Ag2Te
โ“˜Stรผtzite2.BA.65Ag5-xTe3, x = 0.24-0.36
โ“˜Sphalerite2.CB.05aZnS
โ“˜Chalcopyrite2.CB.10aCuFeS2
โ“˜Galena2.CD.10PbS
โ“˜Greigite2.DA.05Fe2+Fe3+2S4
โ“˜Tellurobismuthite2.DC.05Bi2Te3
โ“˜Sylvanite2.EA.05AgAuTe4
โ“˜Calaverite2.EA.10AuTe2
โ“˜Krennerite2.EA.15Au3AgTe8
โ“˜Melonite2.EA.20NiTe2
โ“˜Pyrite2.EB.05aFeS2
โ“˜Marcasite2.EB.10aFeS2
โ“˜Arsenopyrite2.EB.20FeAsS
โ“˜'Freibergite Subgroup'2.GB.05(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
โ“˜Polybasite2.GB.15[Ag6Sb2S7][Ag9CuS4]
Group 3 - Halides
โ“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
โ“˜Corundum4.CB.05Al2O3
โ“˜Hematite4.CB.05Fe2O3
โ“˜Corundum
var. Ruby
4.CB.05Al2O3
โ“˜Quartz4.DA.05SiO2
โ“˜Opal4.DA.10SiO2 ยท nH2O
โ“˜var. Opaline4.DA.10SiO2 ยท nH2O
โ“˜Rutile4.DB.05TiO2
โ“˜Goethite4.FD.10Fe3+O(OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Group 9 - Silicates
โ“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜Muscovite
var. Illite
9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
โ“˜9.EC.15KAl2(AlSi3O10)(OH)2
โ“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
โ“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
โ“˜Microcline9.FA.30K(AlSi3O8)
โ“˜Orthoclase9.FA.30K(AlSi3O8)
Unclassified
โ“˜'K Feldspar
var. Adularia'
-KAlSi3O8
โ“˜'Chlorite Group'-
โ“˜'Feldspar Group'-
โ“˜'Calcium Amphibole Subgroup
var. Hornblende'
-AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
โ“˜'Melnikovite'-
โ“˜'Leucoxene'-
โ“˜'Mica Group'-
โ“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
โ“˜'K Feldspar'-
โ“˜'Smectite Group'-A0.3D2-3[T4O10]Z2 ยท nH2O
โ“˜'Calcium Amphibole Subgroup'-AnCa2(C2+5-mC3+m)(Si8-(n+m)Al(n+m))W2
โ“˜'UM2009-//-CN:FeHKZn'-(Na,K)2Zn3[Fe(CN)6]2 ยท nH2O

List of minerals for each chemical element

HHydrogen
Hโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hโ“˜ GoethiteFe3+O(OH)
Hโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Hโ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hโ“˜ JarositeKFe33+(SO4)2(OH)6
Hโ“˜ KaoliniteAl2(Si2O5)(OH)4
Hโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hโ“˜ OpalSiO2 · nH2O
Hโ“˜ Opal var. OpalineSiO2 · nH2O
Hโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hโ“˜ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
Hโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
CCarbon
Cโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
NNitrogen
Nโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
OOxygen
Oโ“˜ K Feldspar var. AdulariaKAlSi3O8
Oโ“˜ CorundumAl2O3
Oโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oโ“˜ GoethiteFe3+O(OH)
Oโ“˜ HematiteFe2O3
Oโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Oโ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oโ“˜ JarositeKFe33+(SO4)2(OH)6
Oโ“˜ KaoliniteAl2(Si2O5)(OH)4
Oโ“˜ MicroclineK(AlSi3O8)
Oโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oโ“˜ OpalSiO2 · nH2O
Oโ“˜ Opal var. OpalineSiO2 · nH2O
Oโ“˜ OrthoclaseK(AlSi3O8)
Oโ“˜ QuartzSiO2
Oโ“˜ Corundum var. RubyAl2O3
Oโ“˜ RutileTiO2
Oโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oโ“˜ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
Oโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
FFluorine
Fโ“˜ FluoriteCaF2
Fโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
NaSodium
Naโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Naโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
AlAluminium
Alโ“˜ K Feldspar var. AdulariaKAlSi3O8
Alโ“˜ CorundumAl2O3
Alโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Alโ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alโ“˜ KaoliniteAl2(Si2O5)(OH)4
Alโ“˜ MicroclineK(AlSi3O8)
Alโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alโ“˜ OrthoclaseK(AlSi3O8)
Alโ“˜ Corundum var. RubyAl2O3
Alโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alโ“˜ Calcium Amphibole SubgroupAnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
SiSilicon
Siโ“˜ K Feldspar var. AdulariaKAlSi3O8
Siโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Siโ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siโ“˜ KaoliniteAl2(Si2O5)(OH)4
Siโ“˜ MicroclineK(AlSi3O8)
Siโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siโ“˜ OpalSiO2 · nH2O
Siโ“˜ Opal var. OpalineSiO2 · nH2O
Siโ“˜ OrthoclaseK(AlSi3O8)
Siโ“˜ QuartzSiO2
Siโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siโ“˜ Calcium Amphibole SubgroupAnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
SSulfur
Sโ“˜ AcanthiteAg2S
Sโ“˜ ArsenopyriteFeAsS
Sโ“˜ CervelleiteAg4TeS
Sโ“˜ ChalcopyriteCuFeS2
Sโ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sโ“˜ GalenaPbS
Sโ“˜ GreigiteFe2+Fe23+S4
Sโ“˜ JalpaiteAg3CuS2
Sโ“˜ JarositeKFe33+(SO4)2(OH)6
Sโ“˜ MarcasiteFeS2
Sโ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sโ“˜ PyriteFeS2
Sโ“˜ SphaleriteZnS
Sโ“˜ StromeyeriteAgCuS
ClChlorine
Clโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
KPotassium
Kโ“˜ K Feldspar var. AdulariaKAlSi3O8
Kโ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kโ“˜ JarositeKFe33+(SO4)2(OH)6
Kโ“˜ MicroclineK(AlSi3O8)
Kโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kโ“˜ OrthoclaseK(AlSi3O8)
Kโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Kโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
CaCalcium
Caโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caโ“˜ FluoriteCaF2
Caโ“˜ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Caโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caโ“˜ Calcium Amphibole SubgroupAnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
TiTitanium
Tiโ“˜ RutileTiO2
FeIron
Feโ“˜ ArsenopyriteFeAsS
Feโ“˜ ChalcopyriteCuFeS2
Feโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feโ“˜ GoethiteFe3+O(OH)
Feโ“˜ GreigiteFe2+Fe23+S4
Feโ“˜ HematiteFe2O3
Feโ“˜ JarositeKFe33+(SO4)2(OH)6
Feโ“˜ MarcasiteFeS2
Feโ“˜ PyriteFeS2
Feโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
NiNickel
Niโ“˜ MeloniteNiTe2
CuCopper
Cuโ“˜ ChalcopyriteCuFeS2
Cuโ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Cuโ“˜ JalpaiteAg3CuS2
Cuโ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Cuโ“˜ RickarditeCu7Te5
Cuโ“˜ StromeyeriteAgCuS
Cuโ“˜ WeissiteCu2-xTe
ZnZinc
Znโ“˜ SphaleriteZnS
Znโ“˜ UM2009-//-CN:FeHKZn(Na,K)2Zn3[Fe(CN)6]2 · nH2O
AsArsenic
Asโ“˜ ArsenopyriteFeAsS
AgSilver
Agโ“˜ AcanthiteAg2S
Agโ“˜ CervelleiteAg4TeS
Agโ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Agโ“˜ HessiteAg2Te
Agโ“˜ JalpaiteAg3CuS2
Agโ“˜ KrenneriteAu3AgTe8
Agโ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Agโ“˜ Native SilverAg
Agโ“˜ StromeyeriteAgCuS
Agโ“˜ StรผtziteAg5-xTe3, x = 0.24-0.36
Agโ“˜ SylvaniteAgAuTe4
SbAntimony
Sbโ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sbโ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
TeTellurium
Teโ“˜ CalaveriteAuTe2
Teโ“˜ CervelleiteAg4TeS
Teโ“˜ HessiteAg2Te
Teโ“˜ KrenneriteAu3AgTe8
Teโ“˜ MeloniteNiTe2
Teโ“˜ RickarditeCu7Te5
Teโ“˜ StรผtziteAg5-xTe3, x = 0.24-0.36
Teโ“˜ SylvaniteAgAuTe4
Teโ“˜ Native TelluriumTe
Teโ“˜ TellurobismuthiteBi2Te3
Teโ“˜ WeissiteCu2-xTe
AuGold
Auโ“˜ CalaveriteAuTe2
Auโ“˜ Native GoldAu
Auโ“˜ KrenneriteAu3AgTe8
Auโ“˜ SylvaniteAgAuTe4
PbLead
Pbโ“˜ GalenaPbS
BiBismuth
Biโ“˜ TellurobismuthiteBi2Te3

Localities in this Region

  • Montana
    • Phillips County
      • Little Rockies Mining District

Other Regions, Features and Areas containing this locality


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

 
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