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Petrick pegmatite, Kingsland Granite Company Quarry (Petrick Quarry), Llano County, Texas, USAi
Regional Level Types
Petrick pegmatitePegmatite
Kingsland Granite Company Quarry (Petrick Quarry)Quarry
Llano CountyCounty
TexasState
USACountry

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Type:
Pegmatite
Mindat Locality ID:
107388
Long-form identifier:
mindat:1:2:107388:4
GUID (UUID V4):
daf78b21-100e-44ba-857c-938bc60ac4a8


Located 1 mile W of the southern tip of Lake Buchanan.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


28 valid minerals.

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:

β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ 'Almandine-Spessartine Series'
β“˜ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜ Arsenopyrite
Formula: FeAsS
β“˜ 'BastnΓ€site'
Formula: (Ce/Nd/Y/REE)(CO3)F
β“˜ Behoite
Formula: Be(OH)2
Habit: Amorphous, chalky
Colour: White, Pinkish-White
Fluorescence: None
Description: Occurs as alteration coatings on gadolinite. Initial SEM-EDS analysis indicated a substantial beryllium carbonate content, probably due to reaction with atmospheric carbon dioxide.
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Britholite-(Y)
Formula: (Y,Ca)5(SiO4)3OH
β“˜ Calcite
Formula: CaCO3
Fluorescence: Pale Green (SW)
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ 'Fergusonite'
β“˜ Fergusonite-(Y)
Formula: YNbO4
Habit: metamict
Colour: olive-drab green with metallic sheen on fracture surfaces
Fluorescence: none
Description: Commonly found at the outer margins of the pegmatite as columnar metamict crystals having a square cross-section. Moderately radioactive.
βœͺ Fluorapatite
Formula: Ca5(PO4)3F
Habit: Hexagonal
Colour: Green, Tan
Fluorescence: Burnt Orange, Green
Description: Weathered crystals fluoresce burnt-orange. Vug micro crystals are green and gemmy with a brilliant green SW fluorescence.
β“˜ Fluorite
Formula: CaF2
Habit: massive
Colour: pale green, lavender, yellow, pink, purple
Fluorescence: blue-green (SW)
Description: Highly phosphorescent, thermoluminescent, triboluminescent
βœͺ 'Gadolinite'
Habit: Amorphous, metamict
Colour: Greenish-Black
Fluorescence: None
Description: This material is actually transparent very dark green. It also displays an unusually high paramagnetism and can be picked up by a Nd-Fe-B "supermagnet".
β“˜ Gold ?
Formula: Au
β“˜ Graphite
Formula: C
Description: Displays pyrolitic properties
β“˜ 'Gummite'
Habit: amorphous
Colour: yellow, orange
Fluorescence: weak green
Description: Occurs as alteration coatings on uranium-enriched pods of gadolinite and fergusonite
β“˜ Hematite
Formula: Fe2O3
β“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Marcasite
Formula: FeS2
βœͺ Microcline
Formula: K(AlSi3O8)
Fluorescence: Vermillion-red (SW)
Description: Crystals in pegmatite occur up to 40 cm, sometimes intergrown with orthoclase. These intergrowths display a bright blue schiller that when cabbed displays a blue "cat's eye" effect.
βœͺ Molybdenite
Formula: MoS2
Habit: Foliated books and 5-15 mm thick veins in decomposed granite
Colour: Lustrous metallic bluish gray
Fluorescence: None
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Opal
Formula: SiO2 · nH2O
β“˜ Opal var. Opal-AN
Formula: SiO2 · nH2O
Habit: Thin coatings on quartz and microcline, glassy blebs in vugs amorphous)
Colour: transparent very pale green
Fluorescence: Strikingly brilliant green, even visible in overcast daylight.
Description: Dazzling green fluorescence (SW) especially beautiful when coating microcline with its vermillion red fluorescence.
βœͺ Powellite
Formula: Ca(MoO4)
Colour: Cream White
Fluorescence: Lemon Yellow (SW)
Description: Found as crystalline masses interspersed with molybdenite in blocky microcline
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Milky Quartz
Formula: SiO2
β“˜ Quartz var. Smoky Quartz
Formula: SiO2
β“˜ Rutile
Formula: TiO2
β“˜ Samarskite-(Y)
Formula: YFe3+Nb2O8
β“˜ Sanidine
Formula: K(AlSi3O8)
β“˜ Tengerite-(Y) ?
Formula: Y2(CO3)3 · 2-3H2O
Description: No data.
β“˜ Thorite var. Thorogummite
Formula: (Th,U)(SiO4)1-x(OH)4x
Habit: amorphous
Colour: brick-red
Fluorescence: none
Description: Occurs with beohite as a brick-red alteration coating on gadolinite.
β“˜ Uraninite
Formula: UO2
β“˜ Zircon
Formula: Zr(SiO4)
βœͺ Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]
Habit: Tetragonal-Bipyramidal with curved faces
Colour: Reddish-Brown
Fluorescence: None
Description: Commonly found between biotite laminae, radioactive

Gallery:

K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2β“˜ 'Biotite'
β“˜ 'Gadolinite'
MoS2β“˜ Molybdenite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold ?1.AA.05Au
β“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
β“˜Arsenopyrite2.EB.20FeAsS
Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz
var. Smoky Quartz		4.DA.05SiO2
β“˜var. Milky Quartz4.DA.05SiO2
β“˜4.DA.05SiO2
β“˜Opal4.DA.10SiO2 Β· nH2O
β“˜var. Opal-AN4.DA.10SiO2 Β· nH2O
β“˜Rutile4.DB.05TiO2
β“˜Samarskite-(Y)4.DB.25YFe3+Nb2O8
β“˜Uraninite4.DL.05UO2
β“˜Behoite4.FA.05aBe(OH)2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Tengerite-(Y) ?5.CC.10Y2(CO3)3 Β· 2-3H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
β“˜Powellite7.GA.05Ca(MoO4)
β“˜Fergusonite-(Y)7.GA.05YNbO4
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
β“˜Zircon
var. Cyrtolite		9.AD.30Zr[(SiO4),(OH)4]
β“˜Thorite
var. Thorogummite		9.AD.30(Th,U)(SiO4)1-x(OH)4x
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Britholite-(Y)9.AH.25(Y,Ca)5(SiO4)3OH
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Sanidine9.FA.30K(AlSi3O8)
β“˜Microcline9.FA.30K(AlSi3O8)
β“˜Albite9.FA.35Na(AlSi3O8)
Unclassified
β“˜'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜'Gummite'-
β“˜'Chlorite Group'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'BastnΓ€site'-(Ce/Nd/Y/REE)(CO3)F
β“˜'Almandine-Spessartine Series'-
β“˜'Gadolinite'-
β“˜'Fergusonite'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hβ“˜ BehoiteBe(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Britholite-(Y)(Y,Ca)5(SiO4)3OH
Hβ“˜ Opal var. Opal-ANSiO2 · nH2O
Hβ“˜ JarositeKFe33+(SO4)2(OH)6
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ OpalSiO2 · nH2O
Hβ“˜ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
Hβ“˜ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Hβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
BeBeryllium
Beβ“˜ BehoiteBe(OH)2
CCarbon
Cβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Cβ“˜ CalciteCaCO3
Cβ“˜ GraphiteC
Cβ“˜ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
OOxygen
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Oβ“˜ BehoiteBe(OH)2
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ Britholite-(Y)(Y,Ca)5(SiO4)3OH
Oβ“˜ CalciteCaCO3
Oβ“˜ Fergusonite-(Y)YNbO4
Oβ“˜ FluorapatiteCa5(PO4)3F
Oβ“˜ HematiteFe2O3
Oβ“˜ Opal var. Opal-ANSiO2 · nH2O
Oβ“˜ JarositeKFe33+(SO4)2(OH)6
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ OpalSiO2 · nH2O
Oβ“˜ PowelliteCa(MoO4)
Oβ“˜ QuartzSiO2
Oβ“˜ RutileTiO2
Oβ“˜ Samarskite-(Y)YFe3+Nb2O8
Oβ“˜ SanidineK(AlSi3O8)
Oβ“˜ Quartz var. Smoky QuartzSiO2
Oβ“˜ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
Oβ“˜ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Oβ“˜ UraniniteUO2
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Quartz var. Milky QuartzSiO2
Oβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
FFluorine
Fβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluorapatiteCa5(PO4)3F
Fβ“˜ FluoriteCaF2
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ SanidineK(AlSi3O8)
SiSilicon
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ Britholite-(Y)(Y,Ca)5(SiO4)3OH
Siβ“˜ Opal var. Opal-ANSiO2 · nH2O
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ OpalSiO2 · nH2O
Siβ“˜ QuartzSiO2
Siβ“˜ SanidineK(AlSi3O8)
Siβ“˜ Quartz var. Smoky QuartzSiO2
Siβ“˜ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Quartz var. Milky QuartzSiO2
Siβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
PPhosphorus
Pβ“˜ FluorapatiteCa5(PO4)3F
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ JarositeKFe33+(SO4)2(OH)6
Sβ“˜ MarcasiteFeS2
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PyriteFeS2
ClChlorine
Clβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ JarositeKFe33+(SO4)2(OH)6
Kβ“˜ MicroclineK(AlSi3O8)
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ SanidineK(AlSi3O8)
CaCalcium
Caβ“˜ Britholite-(Y)(Y,Ca)5(SiO4)3OH
Caβ“˜ CalciteCaCO3
Caβ“˜ FluorapatiteCa5(PO4)3F
Caβ“˜ FluoriteCaF2
Caβ“˜ PowelliteCa(MoO4)
TiTitanium
Tiβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ RutileTiO2
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ HematiteFe2O3
Feβ“˜ JarositeKFe33+(SO4)2(OH)6
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ MarcasiteFeS2
Feβ“˜ PyriteFeS2
Feβ“˜ Samarskite-(Y)YFe3+Nb2O8
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
YYttrium
Yβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Yβ“˜ Britholite-(Y)(Y,Ca)5(SiO4)3OH
Yβ“˜ Fergusonite-(Y)YNbO4
Yβ“˜ Samarskite-(Y)YFe3+Nb2O8
Yβ“˜ Tengerite-(Y)Y2(CO3)3 · 2-3H2O
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)
Zrβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nbβ“˜ Fergusonite-(Y)YNbO4
Nbβ“˜ Samarskite-(Y)YFe3+Nb2O8
MoMolybdenum
Moβ“˜ MolybdeniteMoS2
Moβ“˜ PowelliteCa(MoO4)
CeCerium
Ceβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
NdNeodymium
Ndβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
AuGold
Auβ“˜ GoldAu
ThThorium
Thβ“˜ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
UUranium
Uβ“˜ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Uβ“˜ UraniniteUO2

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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

Smith, Arthur, Frank Roberts, Denise Bicknell (2008), Mineral News: 24(1): 6-7.
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