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Geis Mine (Red Metal Claim group; Gies Mine; Elk Peak project; Bertha claim group), Cone Butte Sub-District, Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus County, Montana, USAi
Regional Level Types
Geis Mine (Red Metal Claim group; Gies Mine; Elk Peak project; Bertha claim group)Mine
Cone Butte Sub-DistrictSubdistrict
Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District)Mining District
Fergus CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
47° 13' 17'' North , 109° 9' 44'' West
Latitude & Longitude (decimal):
47.22132,-109.16219
GeoHash:
G#: c86keuqs0
GRN:
N32W54
Type:
Mine
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Roy108 (2011)19.6km
Lewistown5,874 (2017)26.8km
Lewistown Heights407 (2011)27.3km
Grass Range110 (2011)34.7km
Winifred205 (2017)40.7km
Mindat Locality ID:
107292
Long-form identifier:
mindat:1:2:107292:4
GUID (UUID V4):
9890471f-51c1-42e6-a081-fafda852f468


A group of 11 patented claims between Armells Creek and Ford Creek about 3 miles NW of old Fort Maginnis.

Mineralization is a Ag-Pb-Zn deposit along the contact between limestone and syenite porphyry.


Property is developed by adits and shafts.

Average grade of 13.7g/t, but high grade to 13,714 g/t.
Unknown of composition - (Ag,Cu)9(As,Sb)(Te,S)6

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


35 valid minerals.

Detailed Mineral List:

β“˜ Acanthite
Formula: Ag2S
β“˜ Altaite
Formula: PbTe
β“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
β“˜ Baryte
Formula: BaSO4
β“˜ Benleonardite
Formula: [Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Calcite
Formula: CaCO3
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ Colusite
Formula: Cu13VAs3S16
β“˜ Digenite
Formula: Cu9S5
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ Fluorite
Formula: CaF2
β“˜ 'Freibergite Subgroup'
Formula: (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
β“˜ Galena
Formula: PbS
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Gold
Formula: Au
β“˜ Gold var. Electrum
Formula: (Au,Ag)
β“˜ Hematite
Formula: Fe2O3
β“˜ Hessite
Formula: Ag2Te
β“˜ Imiterite
Formula: Ag2HgS2
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
β“˜ 'K Feldspar'
β“˜ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
β“˜ Krennerite
Formula: Au3AgTe8
β“˜ Lenaite
Formula: AgFeS2
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Marcasite
Formula: FeS2
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ NagyΓ‘gite
Formula: [Pb3(Pb,Sb)3S6](Au,Te)3
β“˜ Polybasite
Formula: [Ag6Sb2S7][Ag9CuS4]
β“˜ Proustite
Formula: Ag3AsS3
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Roscoelite
Formula: K(V3+,Al)2(AlSi3O10)(OH)2
β“˜ Rutile
Formula: TiO2
β“˜ Sphalerite
Formula: ZnS
β“˜ StΓΌtzite
Formula: Ag5-xTe3, x = 0.24-0.36
β“˜ Sylvanite
Formula: AgAuTe4
β“˜ Tellurium
Formula: Te
β“˜ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
β“˜ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
β“˜var. Electrum1.AA.05(Au,Ag)
β“˜Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
β“˜Digenite2.BA.10Cu9S5
β“˜Bornite2.BA.15Cu5FeS4
β“˜Acanthite2.BA.35Ag2S
β“˜Hessite2.BA.60Ag2Te
β“˜StΓΌtzite2.BA.65Ag5-xTe3, x = 0.24-0.36
β“˜Imiterite2.BD.05Ag2HgS2
β“˜Sphalerite2.CB.05aZnS
β“˜Lenaite2.CB.10aAgFeS2
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Colusite2.CB.30Cu13VAs3S16
β“˜Altaite2.CD.10PbTe
β“˜Galena2.CD.10PbS
β“˜Sylvanite2.EA.05AgAuTe4
β“˜Krennerite2.EA.15Au3AgTe8
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
β“˜Proustite2.GA.05Ag3AsS3
β“˜'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
β“˜'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
β“˜'Freibergite Subgroup'2.GB.05(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
β“˜Polybasite2.GB.15[Ag6Sb2S7][Ag9CuS4]
β“˜NagyΓ‘gite2.HB.20a[Pb3(Pb,Sb)3S6](Au,Te)3
β“˜Benleonardite2.LA.50[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
β“˜Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
β“˜Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
Group 9 - Silicates
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Roscoelite9.EC.15K(V3+,Al)2(AlSi3O10)(OH)2
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
β“˜'Chlorite Group'-
β“˜'K Feldspar
var. Adularia'		-KAlSi3O8
β“˜''-

List of minerals for each chemical element

HHydrogen
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cβ“˜ CalciteCaCO3
Cβ“˜ DolomiteCaMg(CO3)2
OOxygen
Oβ“˜ K Feldspar var. AdulariaKAlSi3O8
Oβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oβ“˜ BaryteBaSO4
Oβ“˜ CalciteCaCO3
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ HematiteFe2O3
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
Oβ“˜ RutileTiO2
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
Fβ“˜ FluoriteCaF2
MgMagnesium
Mgβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgβ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alβ“˜ K Feldspar var. AdulariaKAlSi3O8
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ K Feldspar var. AdulariaKAlSi3O8
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sβ“˜ AcanthiteAg2S
Sβ“˜ BaryteBaSO4
Sβ“˜ BorniteCu5FeS4
Sβ“˜ Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ColusiteCu13VAs3S16
Sβ“˜ DigeniteCu9S5
Sβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sβ“˜ GalenaPbS
Sβ“˜ ImiteriteAg2HgS2
Sβ“˜ LenaiteAgFeS2
Sβ“˜ MarcasiteFeS2
Sβ“˜ NagyΓ‘gite[Pb3(Pb,Sb)3S6](Au,Te)3
Sβ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sβ“˜ ProustiteAg3AsS3
Sβ“˜ PyriteFeS2
Sβ“˜ SphaleriteZnS
Sβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kβ“˜ K Feldspar var. AdulariaKAlSi3O8
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caβ“˜ CalciteCaCO3
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ FluoriteCaF2
TiTitanium
Tiβ“˜ RutileTiO2
VVanadium
Vβ“˜ ColusiteCu13VAs3S16
Vβ“˜ RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
FeIron
Feβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Feβ“˜ BorniteCu5FeS4
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ HematiteFe2O3
Feβ“˜ LenaiteAgFeS2
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ MarcasiteFeS2
Feβ“˜ PyriteFeS2
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ColusiteCu13VAs3S16
Cuβ“˜ DigeniteCu9S5
Cuβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Cuβ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Cuβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Asβ“˜ ColusiteCu13VAs3S16
Asβ“˜ ProustiteAg3AsS3
Asβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
AgSilver
Agβ“˜ AcanthiteAg2S
Agβ“˜ Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Agβ“˜ Gold var. Electrum(Au,Ag)
Agβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Agβ“˜ HessiteAg2Te
Agβ“˜ ImiteriteAg2HgS2
Agβ“˜ KrenneriteAu3AgTe8
Agβ“˜ LenaiteAgFeS2
Agβ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Agβ“˜ ProustiteAg3AsS3
Agβ“˜ StΓΌtziteAg5-xTe3, x = 0.24-0.36
Agβ“˜ SylvaniteAgAuTe4
SbAntimony
Sbβ“˜ Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Sbβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sbβ“˜ NagyΓ‘gite[Pb3(Pb,Sb)3S6](Au,Te)3
Sbβ“˜ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sbβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TeTellurium
Teβ“˜ AltaitePbTe
Teβ“˜ Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]
Teβ“˜ HessiteAg2Te
Teβ“˜ KrenneriteAu3AgTe8
Teβ“˜ NagyΓ‘gite[Pb3(Pb,Sb)3S6](Au,Te)3
Teβ“˜ StΓΌtziteAg5-xTe3, x = 0.24-0.36
Teβ“˜ SylvaniteAgAuTe4
Teβ“˜ TelluriumTe
BaBarium
Baβ“˜ BaryteBaSO4
AuGold
Auβ“˜ Gold var. Electrum(Au,Ag)
Auβ“˜ GoldAu
Auβ“˜ KrenneriteAu3AgTe8
Auβ“˜ NagyΓ‘gite[Pb3(Pb,Sb)3S6](Au,Te)3
Auβ“˜ SylvaniteAgAuTe4
HgMercury
Hgβ“˜ ImiteriteAg2HgS2
PbLead
Pbβ“˜ AltaitePbTe
Pbβ“˜ GalenaPbS
Pbβ“˜ NagyΓ‘gite[Pb3(Pb,Sb)3S6](Au,Te)3

Other Databases

Link to USGS MRDS:10196569

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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

Zhang, X., and Spry, P.G. (1991): Mineralogical and fluid inclusion characteristics of the epithermal Gies gold-silver telluride deposit, Judith Mountains, Fergus County, Montana: A preliminary study, in Baker, D.W., and Berg, R.B., eds., Guidebook of the central Montana alkalic belt, Montana Bureau of Mines and Geology Special Publication 100, p. 63-76.
Zhang, X., and Spry, P.G. (1994): Petrological, mineralogical, fluid inclusion and stable isotope studies of the Gies gold-silver telluride deposit, Judith Mountains, Montana. Economic Geology, 89, 602-628.
Bindi, L., Spry, P.G., Pratesi, G. (2006): Lenaite from the Gies gold–silver telluride deposit, Judith Mountains, Montana, U.S.A.: occurrence, composition, and crystal structure. Canadian Mineralogist 44, 207-212.
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