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Turquoise Lake Occurrence, St. Kevin - Independence, Lake Co., Colorado, USA

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Latitude & Longitude (WGS84): 39° 16' 50'' North , 106° 23' 35'' West
Latitude & Longitude (decimal): 39.28056,-106.39306
GeoHash:G#: 9wur6yycy
Locality type:Occurrence
Köppen climate type:Dfc : Subarctic climate


R. U. KING 1/15/70 MOLY. BASE MA
Commodities (Major) - Molybdenum
Development Status: Occurrence

Regions containing this locality

Rocky Mountains, North America

Mountain Range - 2,039 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


7 valid minerals.

Detailed Mineral List:

'Biotite'
Reference: Minerals of Colorado (1997) E.B. Eckel
Diaspore
Formula: AlO(OH)
Reference: Minerals of Colorado (1997) Eckel, E. B.
Molybdenite
Formula: MoS2
Reference: Minerals of Colorado (1997) E.B. Eckel
'commodity:Molybdenum'
Formula: Mo
Reference: From USGS MRDS database
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Quartz
Formula: SiO2
Reference: Minerals of Colorado (1997) E.B. Eckel
Sillimanite
Formula: Al2(SiO4)O
Reference: Minerals of Colorado (1997) E.B. Eckel
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Reference: Minerals of Colorado (1997) E.B. Eckel
Zoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: Minerals of Colorado (1997) E.B. Eckel

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Molybdenite'2.EA.30MoS2
Group 4 - Oxides and Hydroxides
'Diaspore'4.FD.10AlO(OH)
'Quartz'4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Wavellite8.DC.50Al3(PO4)2(OH,F)3 · 5H2O
Group 9 - Silicates
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Sillimanite9.AF.05Al2(SiO4)O
Zoisite9.BG.10{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Biotite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Diaspore6.1.1.1AlO(OH)
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A3(XO4)2Zq·xH2O
Wavellite42.10.2.1Al3(PO4)2(OH,F)3 · 5H2O
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
Sillimanite52.2.2a.1Al2(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Zoisite58.2.1b.1{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
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
Unclassified Minerals, Rocks, etc.
'Biotite'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H DiasporeAlO(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H WavelliteAl3(PO4)2(OH,F)3 · 5H2O
H Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
OOxygen
O DiasporeAlO(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O SillimaniteAl2(SiO4)O
O WavelliteAl3(PO4)2(OH,F)3 · 5H2O
O Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
AlAluminium
Al DiasporeAlO(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al SillimaniteAl2(SiO4)O
Al WavelliteAl3(PO4)2(OH,F)3 · 5H2O
Al Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si SillimaniteAl2(SiO4)O
Si Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
PPhosphorus
P WavelliteAl3(PO4)2(OH,F)3 · 5H2O
SSulfur
S MolybdeniteMoS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
CaCalcium
Ca Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
MoMolybdenum
Mo MolybdeniteMoS2

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

Mesoproterozoic
1000 - 1600 Ma



ID: 2817073
Granitic rocks of 1400-m.y. age group

Age: Mesoproterozoic (1000 - 1600 Ma)

Stratigraphic Name: Silver Plume Granite; Sherman Granite; Cripple Creek Granite; St. Kevin Granite; Vernal Mesa Granite; Curecanti Granite; Eolus Granite; Trimble Granite

Description: Includes Silver Plume, Sherman, Cripple Creek, St. Kevin, Vernal Mesa, Curecanti, Eolus, and Trimble Granites or Quartz Monzonites; also, San Isabel Granite of Boyer (1962) and unnamed granitic rocks

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:{alkali feldspar granite,granite}, Minor:{quartz monzonite}

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: 3192520
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]

Paleoproterozoic
1600 - 2500 Ma



ID: 3300096
Biotite gneiss

Age: Proterozoic (1600 - 2500 Ma)

Description: Mostly gray to dark-gray, fine- to medium-grained, moderately foliated to strongly foliated and layered gneiss and schist. Composed of quartz, plagioclase, microcline, and biotite; locally contains hornblende, sillimanite, and garnet. Accessory minerals are rutile, sphene, apatite, zircon, and magnetite. Sillimanite-bearing biotite schist (metapelite) crops out in and near the Twin Lakes mining district. Migmatitic in most places; contains numerous light-colored layers and lenses (leucosomes) typically 0.1–10 cm thick, although locally may be much thicker. In most places, leucosome bodies form less than half of rock, have sharp contacts with host rock, show much pinch and swell, and in some places are strongly folded. Leucosomes are composed of equigranular, massive to weakly foliated, white to light-gray microcline-plagioclase-quartz rock containing less than 5 percent biotite; accessory minerals are muscovite, opaque minerals, sphene, apatite, garnet, and zircon. Formation of leucosomes may be due to either injection or in situ partial melting (anatexis) (Johannes and Gupta, 1982; Olsen, 1982). In the case of partial melting, biotite gneiss adjacent to leucosomes commonly has biotite-rich selvages representing refractory material remaining after partial melting. Some areas mapped as biotite gneiss may include small bodies of granitic rock. Unit undated in map area, but similar rocks in the Gore Range and western Front Range, northeast of the map area, have a U-Pb zircon age of about 1,750–1,785 Ma (Kellogg and others, 2008, 2011), which represents the age of the source rocks from which detritus that comprises the sedimentary protolith was derived. In the same areas, U-Pb zircon geochronology indicates that formation of migmatite (partial melting) occurred about 1,695 Ma, which is also the approximate time at which many pegmatites in and near these areas formed (Kellogg and others, 2011)

Reference: Kellogg, K.S., R.R. Shroba, C.A. Ruleman, R.G. Bohannon, W.C. McIntosh, W.R. Premo, M.A. Cosca, R.J. Moscati, T.R. Brandt. Geologic map of the upper Arkansas River valley region, north-central Colorado. doi: 10.3133/sim3382. U.S. Geological Survey Scientific Investigations Map 3382. [186]

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


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