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Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison Co., Montana, USAi
Regional Level Types
Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District)Mining District
Madison Co.County
MontanaState
USACountry

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Key
Latitude & Longitude (WGS84):
45° North , 111° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~77km
Locality type:


12 miles east of Alder. Au, Ag. Gold tellurides

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana 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

24 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
'Albite-Anorthite Series'
Reference: USGS Bull 574
Almandine
Formula: Fe2+3Al2(SiO4)3
Calcite
Formula: CaCO3
Chalcocite
Formula: Cu2S
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcopyrite
Formula: CuFeS2
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
'Chlorite Group'
Reference: USGS Bull 574
Copper
Formula: Cu
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Copper Stain'
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Corundum
Formula: Al2O3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Corundum var: Star Ruby
Formula: Al2O3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Covellite
Formula: CuS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Galena
Formula: PbS
Localities: Reported from at least 7 localities in this region.
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Gold
Formula: Au
Localities: Reported from at least 8 localities in this region.
Reference: The Ore Deposits of The United States and Canada, James F. Kemp, 1906
Hematite
Formula: Fe2O3
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Malachite
Formula: Cu2(CO3)(OH)2
Reference: USGS Bull 574
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Nagyágite
Formula: [Pb3(Pb,Sb)3S6](Au,Te)3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; USGS Bull 574
Orthoclase
Formula: K(AlSi3O8)
Reference: USGS Bull 574
Pyrargyrite
Formula: Ag3SbS3
Reference: USGS Bull 574
Pyrite
Formula: FeS2
Localities: Reported from at least 8 localities in this region.
Pyrite var: Auriferous Pyrite
Formula: FeS2
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Quartz
Formula: SiO2
Localities: Reported from at least 8 localities in this region.
Reference: The Ore Deposits of The United States and Canada, James F. Kemp, 1906
Siderite
Formula: FeCO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Silver
Formula: Ag
Sphalerite
Formula: ZnS
Localities: Reported from at least 6 localities in this region.
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Stibnite
Formula: Sb2S3
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
Sylvanite
Formula: (Au,Ag)2Te4
Tetrahedrite
Formula: Cu6Cu4(Fe2+,Zn)2Sb4S12S
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
'Wad'
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Gold1.AA.05Au
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Nagyágite2.HB.20a[Pb3(Pb,Sb)3S6](Au,Te)3
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
var: Auriferous Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Stibnite2.DB.05Sb2S3
Sylvanite2.EA.05(Au,Ag)2Te4
Tetrahedrite2.GB.05Cu6Cu4(Fe2+,Zn)2Sb4S12S
Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
var: Star Ruby4.CB.05Al2O3
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Chlorite Group'-
'Copper Stain'-
'Garnet Group'-X3Z2(SiO4)3
'Limonite'-(Fe,O,OH,H2O)
'Wad'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Gold1.1.1.1Au
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Chalcocite2.4.7.1Cu2S
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Nagyágite2.11.10.1[Pb3(Pb,Sb)3S6](Au,Te)3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Sylvanite2.12.13.3(Au,Ag)2Te4
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6Cu4(Fe2+,Zn)2Sb4S12S
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Chlorite Group'-
'Copper Stain'-
Corundum
var: Star Ruby
-Al2O3
'Garnet Group'-X3Z2(SiO4)3
'Limonite'-(Fe,O,OH,H2O)
Pyrite
var: Auriferous Pyrite
-FeS2
'Wad'-

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H MuscoviteKAl2(AlSi3O10)(OH)2
H MalachiteCu2(CO3)(OH)2
CCarbon
C SideriteFeCO3
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O QuartzSiO2
O Limonite(Fe,O,OH,H2O)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Garnet GroupX3Z2(SiO4)3
O SideriteFeCO3
O CalciteCaCO3
O OrthoclaseK(AlSi3O8)
O HematiteFe2O3
O MalachiteCu2(CO3)(OH)2
O AlmandineFe32+Al2(SiO4)3
O CorundumAl2O3
O Corundum (var: Star Ruby)Al2O3
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al OrthoclaseK(AlSi3O8)
Al AlmandineFe32+Al2(SiO4)3
Al CorundumAl2O3
Al Corundum (var: Star Ruby)Al2O3
SiSilicon
Si QuartzSiO2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Garnet GroupX3Z2(SiO4)3
Si OrthoclaseK(AlSi3O8)
Si AlmandineFe32+Al2(SiO4)3
SSulfur
S AcanthiteAg2S
S Pyrite (var: Auriferous Pyrite)FeS2
S GalenaPbS
S SphaleriteZnS
S ChalcopyriteCuFeS2
S TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
S StibniteSb2S3
S Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
S PyriteFeS2
S ChalcociteCu2S
S CovelliteCuS
S PyrargyriteAg3SbS3
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca CalciteCaCO3
FeIron
Fe Pyrite (var: Auriferous Pyrite)FeS2
Fe ChalcopyriteCuFeS2
Fe TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
Fe SideriteFeCO3
Fe HematiteFe2O3
Fe AlmandineFe32+Al2(SiO4)3
CuCopper
Cu ChalcopyriteCuFeS2
Cu TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Cu ChalcociteCu2S
Cu CopperCu
Cu CovelliteCuS
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
Zn TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
AgSilver
Ag AcanthiteAg2S
Ag SilverAg
Ag Sylvanite(Au,Ag)2Te4
Ag PyrargyriteAg3SbS3
SbAntimony
Sb TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Sb StibniteSb2S3
Sb Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Sb PyrargyriteAg3SbS3
TeTellurium
Te Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Te Sylvanite(Au,Ag)2Te4
AuGold
Au GoldAu
Au Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Au Sylvanite(Au,Ag)2Te4
PbLead
Pb GalenaPbS
Pb Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3

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Localities in this Region


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