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Clear Creek pegmatite, Burnet County, Texas, USAi
Regional Level Types
Clear Creek pegmatitePegmatite
Burnet CountyCounty
TexasState
USACountry

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Latitude & Longitude (WGS84):
30° 48' 1'' North , 98° 19' 21'' West
Latitude & Longitude (decimal):
30.80048,-98.32254
GRN:
N21W61
Type:
Pegmatite
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Burnet6,239 (2017)10.1km
Buchanan Dam1,519 (2011)12.4km
Buchanan Lake Village692 (2011)13.3km
Kingsland6,030 (2011)19.4km
Highland Haven452 (2017)22.5km
Mindat Locality ID:
4130
Long-form identifier:
mindat:1:2:4130:3
GUID (UUID V4):
0


A REE pegmatite occurrence located 1.5 miles E of Lake Buchanan, N of Clear Creek.




Deposit type: Feldspar contained in pegmatites

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


18 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ 'Bastnäsite'
Formula: (Ce/Nd/Y/REE)(CO3)F
ⓘ Behoite
Formula: Be(OH)2
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Chlorite Group'
ⓘ Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘ 'Fergusonite'
ⓘ Fluorite
Formula: CaF2
ⓘ Fluorite var. Yttrofluorite
Formula: (Ca1-xYx)F2+x where 0.05 < x < 0.3
ⓘ 'Gadolinite'
ⓘ 'Gummite'
ⓘ Hematite
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Jarosite
Formula: KFe3+3(SO4)2(OH)6
Description: Crook (1977) mentions Jarosite as chlorine-bearing (selective replacement of hydroxyl by chlorine (from 0.08 to 5.3%) and/or fluorine-bearing (selective replacement of hydroxyl by fluorine by as much as 0.92%), "apparently representing a new solid-solution series in the alunite-jarosite family".
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Quartz
Formula: SiO2
ⓘ Rowlandite-(Y)
Formula: (Y,Ce)4Fe2+(Si2O7)2F2 (?)
ⓘ Samarskite-(Y)
Formula: YFe3+Nb2O8
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ Tengerite-(Y)
Formula: Y2(CO3)3 · 2-3H2O
ⓘ 'Texasite (of Crook)'
Formula: Pr2SO4O2
Description: Material described and submitted as new species to the IMA was synthetic (Peacor et al 1982).
ⓘ Thalénite-(Y)
Formula: Y3Si3O10F
ⓘ Uraninite
Formula: UO2
ⓘ Yttrialite-(Y)
Formula: (Y,Th)2Si2O7
ⓘ 'Yttrocrasite-(Y)'
Formula: (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
ⓘ Zircon
Formula: Zr(SiO4)
ⓘ Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
ⓘvar. Yttrofluorite3.AB.25(Ca1-xYx)F2+x where 0.05 < x < 0.3
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘSamarskite-(Y)4.DB.25YFe3+Nb2O8
ⓘEuxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘ'Yttrocrasite-(Y)'4.DG.05(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
ⓘUraninite4.DL.05UO2
ⓘBehoite4.FA.05aBe(OH)2
Group 5 - Nitrates and Carbonates
ⓘTengerite-(Y)5.CC.10Y2(CO3)3 · 2-3H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
Group 9 - Silicates
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘvar. Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
ⓘYttrialite-(Y)9.BC.05(Y,Th)2Si2O7
ⓘThalénite-(Y)9.BJ.20Y3Si3O10F
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘRowlandite-(Y)9.HG.20(Y,Ce)4Fe2+(Si2O7)2F2 (?)
Unclassified
ⓘ'Bastnäsite'-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Gummite'-
ⓘ'Gadolinite'-
ⓘ'Fergusonite'-
ⓘ'Texasite (of Crook)' ?-Pr2SO4O2
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ BehoiteBe(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ JarositeKFe33+(SO4)2(OH)6
Hⓘ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
Hⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
Hⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
BeBeryllium
Beⓘ BehoiteBe(OH)2
CCarbon
Cⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Cⓘ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Oⓘ BehoiteBe(OH)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Oⓘ HematiteFe2O3
Oⓘ IlmeniteFe2+TiO3
Oⓘ JarositeKFe33+(SO4)2(OH)6
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ QuartzSiO2
Oⓘ Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
Oⓘ Samarskite-(Y)YFe3+Nb2O8
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
Oⓘ Thalénite-(Y)Y3Si3O10F
Oⓘ UraniniteUO2
Oⓘ Yttrialite-(Y)(Y,Th)2Si2O7
Oⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
Oⓘ ZirconZr(SiO4)
Oⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Oⓘ Texasite (of Crook)Pr2SO4O2
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
Fⓘ Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
Fⓘ Thalénite-(Y)Y3Si3O10F
Fⓘ Fluorite var. Yttrofluorite(Ca1-xYx)F2+x where 0.05 < x < 0.3
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ MicroclineK(AlSi3O8)
Alⓘ SpessartineMn32+Al2(SiO4)3
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ MicroclineK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ Thalénite-(Y)Y3Si3O10F
Siⓘ Yttrialite-(Y)(Y,Th)2Si2O7
Siⓘ ZirconZr(SiO4)
Siⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
SSulfur
Sⓘ JarositeKFe33+(SO4)2(OH)6
Sⓘ Texasite (of Crook)Pr2SO4O2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ JarositeKFe33+(SO4)2(OH)6
Kⓘ MicroclineK(AlSi3O8)
CaCalcium
Caⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Caⓘ FluoriteCaF2
Caⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
Caⓘ Fluorite var. Yttrofluorite(Ca1-xYx)F2+x where 0.05 < x < 0.3
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ⓘ IlmeniteFe2+TiO3
Tiⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
MnManganese
Mnⓘ SpessartineMn32+Al2(SiO4)3
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ JarositeKFe33+(SO4)2(OH)6
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
Feⓘ Samarskite-(Y)YFe3+Nb2O8
Feⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
YYttrium
Yⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Yⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Yⓘ Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
Yⓘ Samarskite-(Y)YFe3+Nb2O8
Yⓘ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
Yⓘ Thalénite-(Y)Y3Si3O10F
Yⓘ Yttrialite-(Y)(Y,Th)2Si2O7
Yⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
Yⓘ Fluorite var. Yttrofluorite(Ca1-xYx)F2+x where 0.05 < x < 0.3
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ⓘ Samarskite-(Y)YFe3+Nb2O8
CeCerium
Ceⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Ceⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ceⓘ Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
PrPraseodymium
Prⓘ Texasite (of Crook)Pr2SO4O2
NdNeodymium
Ndⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
TaTantalum
Taⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
Thⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Thⓘ Yttrialite-(Y)(Y,Th)2Si2O7
Thⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
UUranium
Uⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Uⓘ UraniniteUO2
Uⓘ Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6

Other Databases

Link to USGS MRDS:10065118

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

UNIV TEX PUB (4301), P. 102
Crook, Wilson W., III, (1977) Texasite, a new mineral: the first example of a differentiated rare-earth species. American Mineralogist, 62 (9-10) 1006-1008
Crook, Wilson W. (1977) The Clear Creek Pegmatite: a Rare Earth Pegmatite in Burnet County, Texas. The Mineralogical Record, 8 (2) 88-90
Peacor D.R., Simmons W.B., Essene E.J., Heinrich E.W. (1982): New data on and discreditation of "texasite", "albrittonite", "cuproartinite","cuprohydromagnesite", and "yttromicrolite" with corrected data on nickelbischofite, rowlandite and yttrocrasite. American Mineralogist. 67, 156-169.
Rocks & Minerals (1991): 66:3: 196-224.
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