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Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USAi
Regional Level Types
Sevenmile-Scratchgravel Mining DistrictMining District
Lewis and Clark Co.County
MontanaState
USACountry

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PhotosMapsSearch
02487730014946812804645.jpg
Unnamed skarn

Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USA
08441940015066524082599.jpg
Diopside

Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USA
02487730014946812804645.jpg
Unnamed skarn

Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USA
08441940015066524082599.jpg
Diopside

Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USA
02487730014946812804645.jpg
Unnamed skarn

Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USA
08441940015066524082599.jpg
Diopside

Sevenmile-Scratchgravel Mining District, Lewis and Clark Co., Montana, USA


4mi NW of Helena

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

17 valid minerals.

Rock Types Recorded

Note: 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:

ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Calcite
Formula: CaCO3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
ⓘ Cerussite
Formula: PbCO3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
ⓘ Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ 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"
ⓘ Galena
Formula: PbS
Localities: Reported from at least 16 localities in this region.
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
ⓘ Galena var. Silver-bearing Galena
Formula: PbS with Ag
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 28 localities in this region.
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
ⓘ 'Hornblende'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ 'K Feldspar'
Formula: KAlSi3O8
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ 'Limonite'
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Mimetite
Formula: Pb5(AsO4)3Cl
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 9 localities in this region.
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
ⓘ Pyrolusite
Formula: Mn4+O2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 22 localities in this region.
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Quartz var. Jasper
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Sphalerite
Formula: ZnS
Reference: USGS Prof Paper 610 "Principal Gold Producing Districts of the United States"
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
ⓘ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘCopper1.AA.05Cu
ⓘGold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘvar. Silver-bearing Galena2.CD.10PbS with Ag
ⓘPyrite2.EB.05aFeS2
ⓘSphalerite2.CB.05aZnS
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
ⓘPyrolusite4.DB.05Mn4+O2
ⓘQuartz4.DA.05SiO2
ⓘvar. Jasper4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘCalcite5.AB.05CaCO3
ⓘCerussite5.AB.15PbCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘVesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Unclassified Minerals, Rocks, etc.
ⓘ'Copper Stain'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Hornblende'-
ⓘ'K Feldspar'-KAlSi3O8
ⓘ'Limonite'-

List of minerals for each chemical element

HHydrogen
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ CerussitePbCO3
Cⓘ CalciteCaCO3
OOxygen
Oⓘ QuartzSiO2
Oⓘ MimetitePb5(AsO4)3Cl
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ PyrolusiteMn4+O2
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ K FeldsparKAlSi3O8
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ CerussitePbCO3
Oⓘ CalciteCaCO3
Oⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ K FeldsparKAlSi3O8
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ QuartzSiO2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ K FeldsparKAlSi3O8
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ PyriteFeS2
Sⓘ GalenaPbS
Sⓘ SphaleriteZnS
Sⓘ Galena var. Silver-bearing GalenaPbS with Ag
Sⓘ ChalcopyriteCuFeS2
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
Clⓘ MimetitePb5(AsO4)3Cl
KPotassium
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Kⓘ K FeldsparKAlSi3O8
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
Caⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
MnManganese
Mnⓘ PyrolusiteMn4+O2
FeIron
Feⓘ PyriteFeS2
Feⓘ ChalcopyriteCuFeS2
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CuCopper
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ CopperCu
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ MimetitePb5(AsO4)3Cl
AgSilver
Agⓘ Galena var. Silver-bearing GalenaPbS with Ag
SbAntimony
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
AuGold
Auⓘ GoldAu
PbLead
Pbⓘ GalenaPbS
Pbⓘ Galena var. Silver-bearing GalenaPbS with Ag
Pbⓘ MimetitePb5(AsO4)3Cl
Pbⓘ CerussitePbCO3

Fossils

This region is too big to display the fossil list, try looking at smaller subregions.

Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North America
North America PlateTectonic Plate
USA

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.
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