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Bigger Mica Mine (Sweitzer Lode), Clear Creek pegmatite Province, Jefferson Co., Colorado, USAi
Regional Level Types
Bigger Mica Mine (Sweitzer Lode)Mine
Clear Creek pegmatite ProvinceProvince
Jefferson Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
39° 33' 53'' North , 105° 12' 52'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Indian Hills1,280 (2011)6.1km
Aspen Park882 (2011)7.4km
Ken Caryl32,438 (2014)8.8km
Morrison434 (2017)10.1km
Idledale252 (2011)11.6km


A pegmatite mine located in the N½ sec. 3, T. 6 S., R. 70 W. on the low divide between South Turkey and Deer Creeks. Follow U.S. Highway 285 southwestward from Morrison to the old Turkey Creek (Tiny Town) Road; then turn southeastward on South Deer Creek Canyon Road. Continue for 0.7 mi to where a private road turns off to the right (southwest) to the nearby mine.

Mneralization is a zoned, sinuos pegmatite body in diorite schist. Core zone: quartz-microcline; intermediate zone: quartz-albite-muscovite; wall zone: quartz-microcline-albite-biotite.

Workings include a large open cut and a shaft.

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 at this locality.


Mineral List


11 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
Bertrandite
Formula: Be4(Si2O7)(OH)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
Bismuthinite
Formula: Bi2S3
Reference: Minerals of Colorado (1997) Eckel, E. B.; USGS Prof. Paper 227
Bismutite
Formula: (BiO)2CO3
Reference: Minerals of Colorado (1997) Eckel, E. B.; USGS Prof. Paper 227
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
Microcline
Formula: K(AlSi3O8)
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
'Monazite'
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
Quartz
Formula: SiO2
Reference: USGS Prof. Paper 227
Quartz var: Rose Quartz
Formula: SiO2
Reference: USGS Prof. Paper 227
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).
Torbernite ?
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: Minerals of Colorado (1997) E.B. Eckel
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Minerals of Colorado (1997) Eckel, E. B.; USGS Prof. Paper 227
Uraninite
Formula: UO2
Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).; USGS Prof. Paper 227
Zircon
Formula: Zr(SiO4)
Reference: Minerals of Colorado (1997) Eckel, E. B.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bismuthinite2.DB.05Bi2S3
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Group 8 - Phosphates, Arsenates and Vanadates
Torbernite ?8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Monazite'-
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Torbernite ?40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
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)
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, Mixtures, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Monazite'-
Quartz
var: Rose Quartz
-SiO2
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H BertranditeBe4(Si2O7)(OH)2
H TorberniteCu(UO2)2(PO4)2 · 12H2O
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be BertranditeBe4(Si2O7)(OH)2
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C Bismutite(BiO)2CO3
OOxygen
O BerylBe3Al2(Si6O18)
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O UraniniteUO2
O MicroclineK(AlSi3O8)
O AlbiteNa(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O BertranditeBe4(Si2O7)(OH)2
O Bismutite(BiO)2CO3
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O ZirconZr(SiO4)
O QuartzSiO2
O Quartz (var: Rose Quartz)SiO2
O TorberniteCu(UO2)2(PO4)2 · 12H2O
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al MicroclineK(AlSi3O8)
Al AlbiteNa(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
SiSilicon
Si BerylBe3Al2(Si6O18)
Si MicroclineK(AlSi3O8)
Si AlbiteNa(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si BertranditeBe4(Si2O7)(OH)2
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si ZirconZr(SiO4)
Si QuartzSiO2
Si Quartz (var: Rose Quartz)SiO2
PPhosphorus
P TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
S BismuthiniteBi2S3
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
MnManganese
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
FeIron
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CuCopper
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
TaTantalum
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
BiBismuth
Bi BismuthiniteBi2S3
Bi Bismutite(BiO)2CO3
UUranium
U UraniniteUO2
U TorberniteCu(UO2)2(PO4)2 · 12H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ref.: Eckel, Edwin B. (1997), Minerals of Colorado, updated & revised: 18.
Ref.: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).


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