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Alaska Mine, Poughkeepsie Gulch, San Juan Co., Colorado, USAi
Regional Level Types
Alaska MineMine
Poughkeepsie GulchBasin
San Juan Co.County
ColoradoState
USACountry

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Key
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Latitude & Longitude (WGS84):
37° 55' 50'' North , 107° 37' 55'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Ouray1,008 (2017)10.8km
Silverton637 (2011)13.5km
Telluride2,399 (2018)15.8km
Portland135 (2011)17.8km
Ophir169 (2017)19.4km


No description has been added for this locality. Can you add one?

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

27 valid minerals. 2 (TL) - type locality of valid minerals.

Detailed Mineral List:

Aikinite
Formula: PbCuBiS3
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Alaskaite'
Reference: [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Baryte
Formula: BaSO4
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Benjaminite
Formula: Ag3Bi7S12
Reference: Handbook of Mineralogy
Bismuthinite
Formula: Bi2S3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Bismutite
Formula: (BiO)2CO3
Reference: microprobe ID by Bart Cannon
Chalcopyrite
Formula: CuFeS2
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Cosalite
Formula: Pb2Bi2S5
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).; A. Rosenzweig (1957) Mineralogical Notes on the Silverton Quadrangle, Colorado. in 8th Field Conference New Mexico Geological Society. pp199-202
Cupropavonite (TL)
Formula: Cu0.9Ag0.5Pb0.6Bi2.5S5
Type Locality:
Reference: Minerals of Colorado (1997) Eckel, E. B.
Fluorite
Formula: CaF2
Reference: Robert Stoufer
Freibergite
Formula: Ag6[Cu4Fe2]Sb4S13-x
Reference: Emmons and Becker (1885) Statistics and Technology of the precious Metals. Census reports Tenth census. June 1, 1880, Volume 13 By United States. Census office. 10th census, 1880, United States. Census Office
Galena
Formula: PbS
Reference: Minerals of Colorado (1997) E.B. Eckel; Emmons and Becker (1885) Statistics and Technology of the precious Metals. Census reports Tenth census. June 1, 1880, Volume 13 By United States. Census office. 10th census, 1880, United States. Census Office; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Galenobismutite
Formula: PbBi2S4
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).
Gustavite
Formula: AgPbBi3S6
Reference: Minerals of Colorado (1997) Eckel, E. B.; Karup-Møller, S. (1977). Mineralogy of some Ag-(Cu)-Pb-Bi sulphide associations. Bulletin Geological Society Denmark, 26, 41-68.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Matildite
Formula: AgBiS2
Reference: Minerals of Colorado (1997) E.B. Eckel
Mummeite (TL)
Formula: Cu0.58Ag3.11Pb1.10Bi6.65S13
Reference: Minerals of Colorado (1997) E.B. Eckel
Neyite
Formula: Ag2Cu6Pb25Bi26S68
Reference: Minerals of Colorado (1997) E.B. Eckel
Nuffieldite
Formula: Cu1.4Pb2.4Bi2.4Sb0.2S7
Reference: Minerals of Colorado (1997) E.B. Eckel
Ourayite
Formula: Ag3Pb4Bi5S13
Pavonite
Formula: AgBi3S5
Reference: Minerals of Colorado (1997) Eckel, E. B.; Karup-Møller, S. (1977). Mineralogy of some Ag-(Cu)-Pb-Bi sulphide associations. Bulletin Geological Society Denmark, 26, 41-68.
Pyrite
Formula: FeS2
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).; A. Rosenzweig (1957) Mineralogical Notes on the Silverton Quadrangle, Colorado. in 8th Field Conference New Mexico Geological Society. pp199-202
Quartz
Formula: SiO2
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Rhodochrosite
Formula: MnCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Rhodonite
Formula: Mn2+SiO3
Reference: Minerals of Colorado (1997) Eckel, E. B.; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Sphalerite
Formula: ZnS
Reference: Minerals of Colorado (1997) Eckel, E. B.; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182
Tellurite
Formula: TeO2
Reference: Dana 7:I:446, 476; Dana 6:114, 1091; Neues Jahrb. Mineral. Mon.:555-576 (1992).
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Reference: Minerals of Colorado (1997) Eckel, E. B.; A. Rosenzweig (1957) Mineralogical Notes on the Silverton Quadrangle, Colorado. in 8th Field Conference New Mexico Geological Society. pp199-202; Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. USGS Bull 182

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Aikinite2.HB.05aPbCuBiS3
Benjaminite2.JA.05eAg3Bi7S12
Bismuthinite2.DB.05Bi2S3
Chalcopyrite2.CB.10aCuFeS2
Cosalite2.JB.10Pb2Bi2S5
Cupropavonite (TL)2.JA.05aCu0.9Ag0.5Pb0.6Bi2.5S5
Freibergite2.GB.05Ag6[Cu4Fe2]Sb4S13-x
Galena2.CD.10PbS
Galenobismutite2.JC.25ePbBi2S4
Gustavite2.JB.40aAgPbBi3S6
Matildite2.JA.20AgBiS2
Mummeite (TL)2.JA.05fCu0.58Ag3.11Pb1.10Bi6.65S13
Neyite2.JB.25iAg2Cu6Pb25Bi26S68
Nuffieldite2.JB.25gCu1.4Pb2.4Bi2.4Sb0.2S7
Ourayite2.JB.40cAg3Pb4Bi5S13
Pavonite2.JA.05aAgBi3S5
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Tetrahedrite2.GB.05Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Tellurite4.DE.20TeO2
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Rhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Rhodonite9.DK.05Mn2+SiO3
Unclassified Minerals, Rocks, etc.
'Alaskaite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
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
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Freibergite3.3.6.3Ag6[Cu4Fe2]Sb4S13-x
Nuffieldite3.3.4.1Cu1.4Pb2.4Bi2.4Sb0.2S7
Tetrahedrite3.3.6.1Cu6[Cu4(Fe,Zn)2]Sb4S13
ø = 3
Aikinite3.4.5.1PbCuBiS3
Gustavite3.4.15.3AgPbBi3S6
2.5 < ø < 3
Cosalite3.5.9.1Pb2Bi2S5
Neyite3.5.1.1Ag2Cu6Pb25Bi26S68
Ourayite3.5.6.1Ag3Pb4Bi5S13
ø = 2
Galenobismutite3.7.9.1PbBi2S4
Matildite3.7.1.1AgBiS2
1 < ø < 2
Benjaminite3.8.10.3Ag3Bi7S12
Cupropavonite (TL)3.8.10.6Cu0.9Ag0.5Pb0.6Bi2.5S5
Mummeite (TL)3.8.10.4Cu0.58Ag3.11Pb1.10Bi6.65S13
Pavonite3.8.10.1AgBi3S5
Group 4 - SIMPLE OXIDES
AX2
Tellurite4.4.6.1TeO2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Rhodochrosite14.1.1.4MnCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=5
Rhodonite65.4.1.1Mn2+SiO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Alaskaite'-
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H KaoliniteAl2(Si2O5)(OH)4
CCarbon
C RhodochrositeMnCO3
C Bismutite(BiO)2CO3
OOxygen
O BaryteBaSO4
O QuartzSiO2
O TelluriteTeO2
O RhodoniteMn2+SiO3
O RhodochrositeMnCO3
O KaoliniteAl2(Si2O5)(OH)4
O Bismutite(BiO)2CO3
FFluorine
F FluoriteCaF2
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si QuartzSiO2
Si RhodoniteMn2+SiO3
Si KaoliniteAl2(Si2O5)(OH)4
SSulfur
S CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
S MummeiteCu0.58Ag3.11Pb1.10Bi6.65S13
S PavoniteAgBi3S5
S GustaviteAgPbBi3S6
S TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
S SphaleriteZnS
S CosalitePb2Bi2S5
S GalenobismutitePbBi2S4
S PyriteFeS2
S BaryteBaSO4
S ChalcopyriteCuFeS2
S NeyiteAg2Cu6Pb25Bi26S68
S AikinitePbCuBiS3
S BismuthiniteBi2S3
S MatilditeAgBiS2
S GalenaPbS
S NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
S OurayiteAg3Pb4Bi5S13
S FreibergiteAg6[Cu4Fe2]Sb4S13-x
S BenjaminiteAg3Bi7S12
CaCalcium
Ca FluoriteCaF2
MnManganese
Mn RhodoniteMn2+SiO3
Mn RhodochrositeMnCO3
FeIron
Fe TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe FreibergiteAg6[Cu4Fe2]Sb4S13-x
CuCopper
Cu CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Cu MummeiteCu0.58Ag3.11Pb1.10Bi6.65S13
Cu TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Cu ChalcopyriteCuFeS2
Cu NeyiteAg2Cu6Pb25Bi26S68
Cu AikinitePbCuBiS3
Cu NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
Cu FreibergiteAg6[Cu4Fe2]Sb4S13-x
ZnZinc
Zn TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Zn SphaleriteZnS
AgSilver
Ag CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Ag MummeiteCu0.58Ag3.11Pb1.10Bi6.65S13
Ag PavoniteAgBi3S5
Ag GustaviteAgPbBi3S6
Ag NeyiteAg2Cu6Pb25Bi26S68
Ag MatilditeAgBiS2
Ag OurayiteAg3Pb4Bi5S13
Ag FreibergiteAg6[Cu4Fe2]Sb4S13-x
Ag BenjaminiteAg3Bi7S12
SbAntimony
Sb TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Sb NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
Sb FreibergiteAg6[Cu4Fe2]Sb4S13-x
TeTellurium
Te TelluriteTeO2
BaBarium
Ba BaryteBaSO4
PbLead
Pb CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Pb MummeiteCu0.58Ag3.11Pb1.10Bi6.65S13
Pb GustaviteAgPbBi3S6
Pb CosalitePb2Bi2S5
Pb GalenobismutitePbBi2S4
Pb NeyiteAg2Cu6Pb25Bi26S68
Pb AikinitePbCuBiS3
Pb GalenaPbS
Pb NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
Pb OurayiteAg3Pb4Bi5S13
BiBismuth
Bi CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
Bi MummeiteCu0.58Ag3.11Pb1.10Bi6.65S13
Bi PavoniteAgBi3S5
Bi GustaviteAgPbBi3S6
Bi CosalitePb2Bi2S5
Bi GalenobismutitePbBi2S4
Bi NeyiteAg2Cu6Pb25Bi26S68
Bi AikinitePbCuBiS3
Bi BismuthiniteBi2S3
Bi MatilditeAgBiS2
Bi NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
Bi OurayiteAg3Pb4Bi5S13
Bi Bismutite(BiO)2CO3
Bi BenjaminiteAg3Bi7S12

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Miocene - Eocene
5.333 - 56 Ma



ID: 3190650
Cenozoic volcanic rocks

Age: Cenozoic (5.333 - 56 Ma)

Stratigraphic Name: San Juan Mountains

Comments: Southern Rocky Mountains

Lithology: Intermediate-felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Oligocene
23.03 - 33.9 Ma



ID: 2813930
Intra-ash flow andesitic lavas

Age: Oligocene (23.03 - 33.9 Ma)

Comments: Original map source: Green, G.N., 1992, The Digital Geologic Map of Colorado in ARC/INFO Format: U.S. Geological Survey Open-File Report 92-0507, 9 p., scale 1:500,000.

Lithology: Major:{andesite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 114, 1091.
Palache, C., Berman, H. & Frondel, C. (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 446, 476.
Neues Jahrb. Mineral. Mon. (1992): 555-576.
Clark (1993), "Hey's Mineral Index, 3rd Edition."
Eckels, E. B. (1997), Minerals of Colorado.

Localities in this Region
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  • Colorado

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