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Lake George, Park Co., Colorado, USA

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Latitude & Longitude (WGS84): 38° 58' 51'' North , 105° 21' 28'' West
Latitude & Longitude (decimal): 38.98085,-105.35801
GeoHash:G#: 9wvjf80xu
Locality type:Lake
Köppen climate type:Dfb : Warm-summer humid continental climate


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Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

R. A. Kosnar Claim on Yucca Hill, Steven's Ranch, near Lake George, Park County, Colorado

Regions containing this locality

Rocky Mountains, North America

Mountain Range - 2,037 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

26 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Baryte
Formula: BaSO4
Bertrandite
Formula: Be4(Si2O7)(OH)2
Beryl
Formula: Be3Al2(Si6O18)
Calcite
Formula: CaCO3
Reference: Rocks & Min 70:5 pp 298-310
Cassiterite
Formula: SnO2
Chalcopyrite
Formula: CuFeS2
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Covellite
Formula: CuS
Euclase
Formula: BeAl(SiO4)(OH)
'Feldspar Group'
Fluorite
Formula: CaF2
Reference: C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Galena
Formula: PbS
Goethite
Formula: α-Fe3+O(OH)
Reference: Rocks & Min 70:5 pp 298-310
Hematite
Formula: Fe2O3
Microcline
Formula: K(AlSi3O8)
Reference: Amefican Mineralogist, Volume 70, pages 794-804, 1985; C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Microcline var: Amazonite
Formula: K(AlSi3O8)
Reference: Amefican Mineralogist, Volume 70, pages 794-804, 1985; C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Molybdenite
Formula: MoS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
'Onegite'
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Reference: C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Quartz var: Smoky Quartz
Formula: SiO2
Reference: C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
Stibiocolumbite
Formula: Sb(Nb,Ta)O4
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: C. C. Hawley, Claude Huffman, Jr., J. C. Hamilton, and L. F. Rader, Jr (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. in USGS Professional Paper: 550-C pp138-147.
Uraninite
Formula: UO2
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Xenotime-(Y)
Formula: Y(PO4)
Zircon
Formula: Zr(SiO4)
Reference: Rudy Bolona
Zircon var: Cyrtolite
Formula: Zr[(SiO4),(OH)4]
Reference: Rudy Bolona

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Stibiocolumbite4.DE.30Sb(Nb,Ta)O4
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Euclase9.AE.10BeAl(SiO4)(OH)
Microcline9.FA.30K(AlSi3O8)
var: Amazonite9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Topaz9.AF.35Al2(SiO4)(F,OH)2
Zircon9.AD.30Zr(SiO4)
var: Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
Unclassified Minerals, Rocks, etc.
Feldspar Group-
Onegite-
Wolframite-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
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 = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Cassiterite4.4.1.5SnO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Stibiocolumbite8.1.6.1Sb(Nb,Ta)O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Euclase52.2.1.1BeAl(SiO4)(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Bertrandite56.1.1.1Be4(Si2O7)(OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
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
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Albite
var: Cleavelandite
-Na(AlSi3O8)
'Feldspar Group'-
Microcline
var: Amazonite
-K(AlSi3O8)
'Onegite'-
Quartz
var: Smoky Quartz
-SiO2
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4
Xenotime-(Y)-Y(PO4)
Zircon
var: Cyrtolite
-Zr[(SiO4),(OH)4]

List of minerals for each chemical element

HHydrogen
H BertranditeBe4(Si2O7)(OH)2
H Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
H EuclaseBeAl(SiO4)(OH)
H Goethiteα-Fe3+O(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H TopazAl2(SiO4)(F,OH)2
BeBeryllium
Be BertranditeBe4(Si2O7)(OH)2
Be BerylBe3Al2(Si6O18)
Be EuclaseBeAl(SiO4)(OH)
CCarbon
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O AlbiteNa(AlSi3O8)
O Microcline (var: Amazonite)K(AlSi3O8)
O BaryteBaSO4
O BertranditeBe4(Si2O7)(OH)2
O BerylBe3Al2(Si6O18)
O CalciteCaCO3
O CassiteriteSnO2
O Albite (var: Cleavelandite)Na(AlSi3O8)
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
O EuclaseBeAl(SiO4)(OH)
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SideriteFeCO3
O Quartz (var: Smoky Quartz)SiO2
O StibiocolumbiteSb(Nb,Ta)O4
O TopazAl2(SiO4)(F,OH)2
O UraniniteUO2
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
O Xenotime-(Y)Y(PO4)
O ZirconZr(SiO4)
FFluorine
F FluoriteCaF2
F TopazAl2(SiO4)(F,OH)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Cleavelandite)Na(AlSi3O8)
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Microcline (var: Amazonite)K(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al EuclaseBeAl(SiO4)(OH)
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al TopazAl2(SiO4)(F,OH)2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Microcline (var: Amazonite)K(AlSi3O8)
Si BertranditeBe4(Si2O7)(OH)2
Si BerylBe3Al2(Si6O18)
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
Si EuclaseBeAl(SiO4)(OH)
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Quartz (var: Smoky Quartz)SiO2
Si TopazAl2(SiO4)(F,OH)2
Si ZirconZr(SiO4)
PPhosphorus
P Xenotime-(Y)Y(PO4)
SSulfur
S BaryteBaSO4
S ChalcopyriteCuFeS2
S CovelliteCuS
S GalenaPbS
S MolybdeniteMoS2
S PyriteFeS2
S SphaleriteZnS
KPotassium
K Microcline (var: Amazonite)K(AlSi3O8)
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca FluoriteCaF2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ChalcopyriteCuFeS2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe PyriteFeS2
Fe SideriteFeCO3
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
CuCopper
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
ZnZinc
Zn SphaleriteZnS
YYttrium
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr Zircon (var: Cyrtolite)Zr[(SiO4),(OH)4]
Zr ZirconZr(SiO4)
NbNiobium
Nb StibiocolumbiteSb(Nb,Ta)O4
MoMolybdenum
Mo MolybdeniteMoS2
SnTin
Sn CassiteriteSnO2
SbAntimony
Sb StibiocolumbiteSb(Nb,Ta)O4
BaBarium
Ba BaryteBaSO4
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
PbLead
Pb GalenaPbS
UUranium
U UraniniteUO2

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

Oligocene - Eocene
23.03 - 56 Ma



ID: 2945325
Oligocene sedimentary rocks

Age: Paleogene (23.03 - 56 Ma)

Stratigraphic Name: Duchesne River Formation; Bishop Conglomerate; Florissant Lake Beds; Antero Formation; Creede Formation

Description: Northwest: includes Duchesne River Fm (sandstone and shale; includes some rocks of Eocene age) and Bishop Conglomerate near Utah border. South-central: includes Florissant Lake Beds (tuffaceous shale and tuff) and Antero Fm (limestone tuff, tuffaceous sandstone, and conglomerate). Southwest: includes Creede Fm (tuffaceous siltstone, sandstone, conglomerate) and gravels interbedded with volcanic rocks northeast and southeast of Gunnison

Lithology: Major:{sandstone}, Minor:{shale,conglomerate,volcanic}, Incidental:{siltstone}

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]

Paleoproterozoic
1600 - 2500 Ma



ID: 3186950
Paleoproterozoic crystalline metamorphic rocks

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Orthogneiss/paragneiss

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]

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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hawley, C.C., Huffman, C., Jr., Hamilton, J.C., and Rader, L.F., Jr. (1966) Geologic and geochemical features of the Redskin Granite and associated rocks, Lake George beryllium area, Colorado. USGS Professional Paper 550-C, 138-147.

Localities in this Region
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