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Free Enterprise Mine (Silver Bell), Boulder, Boulder Mining District, Boulder Batholith, Jefferson County, Montana, USAi
Regional Level Types
Free Enterprise Mine (Silver Bell)Mine
BoulderTown
Boulder Mining DistrictMining District
Boulder BatholithBatholith
Jefferson CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
46° 15' 20'' North , 112° 8' 55'' West
Latitude & Longitude (decimal):
46.25556,-112.14861
GRN:
N31W57
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Boulder1,207 (2017)3.0km
Basin212 (2011)9.0km
Jefferson City472 (2011)17.4km
Clancy1,661 (2011)26.4km
South Hills517 (2017)35.4km
Mindat Locality ID:
131502
Long-form identifier:
mindat:1:2:131502:1
GUID (UUID V4):
0


A former Ag-U-Pb-Cu-Zn-Mo-Ba(baryte)-As-Sb mine located in sec. 19, T6N, R4W, MPM, 3.1 km (1.9 miles) NW of Boulder city and SSE of Sugarloaf Mountain.

The mine is developed by a shaft approximately 130 feet deep, with 2 levels and about 2,000 to 3,000 feet of drifts and crosscuts.

Mine status is currently unknown,and workings were partly caved when visited in May 2006.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


22 valid minerals.

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
ⓘ Baryte
Formula: BaSO4
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Galena
Formula: PbS
ⓘ 'Gummite'
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'Limonite'
ⓘ Magnesio-hornblende
Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘ Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
ⓘ Molybdenite
Formula: MoS2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Silver
Formula: Ag
ⓘ Orthoclase
Formula: K(AlSi3O8)
ⓘ Pyrargyrite
Formula: Ag3SbS3
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Samarskite-(Y)
Formula: YFe3+Nb2O8
ⓘ Uraninite
Formula: UO2
ⓘ Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘ Zeunerite
Formula: Cu(UO2)2(AsO4)2 · 12H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘPyrargyrite2.GA.05Ag3SbS3
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘSamarskite-(Y)4.DB.25YFe3+Nb2O8
ⓘUraninite4.DL.05UO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
ⓘZeunerite8.EB.05Cu(UO2)2(AsO4)2 · 12H2O
ⓘMetatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Group 9 - Silicates
ⓘUranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘMagnesio-hornblende9.DE.10◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Gummite'-
ⓘ'Limonite'-

List of minerals for each chemical element

HHydrogen
Hⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Hⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Hⓘ ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Oⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ QuartzSiO2
Oⓘ Samarskite-(Y)YFe3+Nb2O8
Oⓘ UraniniteUO2
Oⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Oⓘ ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ OrthoclaseK(AlSi3O8)
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
PPhosphorus
Pⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ MolybdeniteMoS2
Sⓘ PyrargyriteAg3SbS3
Sⓘ PyriteFeS2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ OrthoclaseK(AlSi3O8)
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Caⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Caⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
Feⓘ Samarskite-(Y)YFe3+Nb2O8
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Cuⓘ ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
YYttrium
Yⓘ Samarskite-(Y)YFe3+Nb2O8
NbNiobium
Nbⓘ Samarskite-(Y)YFe3+Nb2O8
MoMolybdenum
Moⓘ MolybdeniteMoS2
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ PyrargyriteAg3SbS3
Agⓘ Native SilverAg
SbAntimony
Sbⓘ PyrargyriteAg3SbS3
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ GalenaPbS
UUranium
Uⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Uⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Uⓘ UraniniteUO2
Uⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Uⓘ ZeuneriteCu(UO2)2(AsO4)2 · 12H2O

Other Databases

Link to USGS MRDS:10196522

Other Regions, Features and Areas containing this locality

North AmericaContinent
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References

(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0300430122
USGS Bulletin 988-G, Geology of the area adjacent to the Free Enterprise mine, Jefferson County, Montana.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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