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Columbia Mining District (Ashcroft Mining District), Pitkin County, Colorado, USAi
Regional Level Types
Columbia Mining District (Ashcroft Mining District)Mining District
Pitkin CountyCounty
ColoradoState
USACountry

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PhotosMapsSearch
04913380017272077566900.jpg
Ruins of mill and tailings from three lode mines, Independence, Colorado

Independence, Columbia Mining District, Pitkin County, Colorado, USA
09473140017272077566159.jpg
Ruins of buildings in Independence, Colorado

Independence, Columbia Mining District, Pitkin County, Colorado, USA
04572720017272077572667.jpg
Ruins in Independence, Colorado suggesting poor urban design

Independence, Columbia Mining District, Pitkin County, Colorado, USA
04913380017272077566900.jpg
Ruins of mill and tailings from three lode mines, Independence, Colorado

Independence, Columbia Mining District, Pitkin County, Colorado, USA
09473140017272077566159.jpg
Ruins of buildings in Independence, Colorado

Independence, Columbia Mining District, Pitkin County, Colorado, USA
04572720017272077572667.jpg
Ruins in Independence, Colorado suggesting poor urban design

Independence, Columbia Mining District, Pitkin County, Colorado, USA
04913380017272077566900.jpg
Ruins of mill and tailings from three lode mines, Independence, Colorado

Independence, Columbia Mining District, Pitkin County, Colorado, USA
09473140017272077566159.jpg
Ruins of buildings in Independence, Colorado

Independence, Columbia Mining District, Pitkin County, Colorado, USA
Latitude & Longitude (WGS84):
39° North , 106° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~49km
GRN:
N27W59
Type:
Mining District
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
50073
Long-form identifier:
mindat:1:2:50073:4
GUID (UUID V4):
0


12 miles south of Aspen. Pb, Ag, Cu, Fe.

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

24 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:

ⓘ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
References:
Rudy Bologna
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Baryte
Formula: BaSO4
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
Rudy Bologna
ⓘ Calcite
Formula: CaCO3
ⓘ Cerussite
Formula: PbCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chlorargyrite
Formula: AgCl
ⓘ 'Chlorite Group'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Cuprite
Formula: Cu2O
ⓘ Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
References:
Rudy Bologna
ⓘ Galena
Formula: PbS
ⓘ Galena var. Silver-bearing Galena
Formula: PbS with Ag
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Goethite
Formula: Fe3+O(OH)
References:
Rudy Bologna
ⓘ Halotrichite
Formula: FeAl2(SO4)4 · 22H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Limonite'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Microcline
Formula: K(AlSi3O8)
References:
Rudy Bologna
ⓘ Monazite-(Ce)
Formula: Ce(PO4)
References:
Rudy Bologna
ⓘ 'Psilomelane'
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrolusite
Formula: Mn4+O2
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Amethyst
Formula: SiO2
ⓘ Siderite
Formula: FeCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ Uraninite
Formula: UO2
References:
Rudy Bologna
ⓘ Uranopolycrase
Formula: (U4+,Y)(Ti,Nb)2O6
References:
Rudy Bologna
ⓘ Zircon
Formula: Zr(SiO4)
References:
Rudy Bologna
ⓘ Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]
References:
Rudy Bologna

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘvar. Silver-bearing Galena2.CD.10PbS with Ag
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 3 - Halides
ⓘChlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘCuprite4.AA.10Cu2O
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Amethyst		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘEuxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘUranopolycrase4.DG.05(U4+,Y)(Ti,Nb)2O6
ⓘUraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘCerussite5.AB.15PbCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘHalotrichite7.CB.85FeAl2(SO4)4 · 22H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMonazite-(Ce)8.AD.50Ce(PO4)
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘvar. Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
ⓘAllanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
ⓘMicrocline9.FA.30K(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Psilomelane'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ GoethiteFe3+O(OH)
Hⓘ HalotrichiteFeAl2(SO4)4 · 22H2O
Hⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
CCarbon
Cⓘ CalciteCaCO3
Cⓘ CerussitePbCO3
Cⓘ SideriteFeCO3
OOxygen
Oⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oⓘ Quartz var. AmethystSiO2
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ CerussitePbCO3
Oⓘ CupriteCu2O
Oⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Oⓘ GoethiteFe3+O(OH)
Oⓘ HalotrichiteFeAl2(SO4)4 · 22H2O
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Monazite-(Ce)Ce(PO4)
Oⓘ PyrolusiteMn4+O2
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
Oⓘ UraniniteUO2
Oⓘ Uranopolycrase(U4+,Y)(Ti,Nb)2O6
Oⓘ ZirconZr(SiO4)
Oⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ HalotrichiteFeAl2(SO4)4 · 22H2O
Alⓘ MicroclineK(AlSi3O8)
SiSilicon
Siⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siⓘ Quartz var. AmethystSiO2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ MicroclineK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ ZirconZr(SiO4)
Siⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Siⓘ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pⓘ Monazite-(Ce)Ce(PO4)
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ HalotrichiteFeAl2(SO4)4 · 22H2O
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ Galena var. Silver-bearing GalenaPbS with Ag
ClChlorine
Clⓘ ChlorargyriteAgCl
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
CaCalcium
Caⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caⓘ CalciteCaCO3
Caⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Tiⓘ Uranopolycrase(U4+,Y)(Ti,Nb)2O6
MnManganese
Mnⓘ PyrolusiteMn4+O2
FeIron
Feⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ GoethiteFe3+O(OH)
Feⓘ HalotrichiteFeAl2(SO4)4 · 22H2O
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CupriteCu2O
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
YYttrium
Yⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Yⓘ Uranopolycrase(U4+,Y)(Ti,Nb)2O6
ZrZirconium
Zrⓘ ZirconZr(SiO4)
Zrⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nbⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nbⓘ Uranopolycrase(U4+,Y)(Ti,Nb)2O6
AgSilver
Agⓘ ChlorargyriteAgCl
Agⓘ Galena var. Silver-bearing GalenaPbS with Ag
BaBarium
Baⓘ BaryteBaSO4
CeCerium
Ceⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ceⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ceⓘ Monazite-(Ce)Ce(PO4)
TaTantalum
Taⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
PbLead
Pbⓘ CerussitePbCO3
Pbⓘ GalenaPbS
Pbⓘ Galena var. Silver-bearing GalenaPbS with Ag
ThThorium
Thⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
Uⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Uⓘ UraniniteUO2
Uⓘ Uranopolycrase(U4+,Y)(Ti,Nb)2O6

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
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.

References

HENDERSON, C.W., 1926, USGS PROF. PAPER 138, P. 110.
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