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Badu Hill quarry, Llano, Llano County, Texas, USA i
Regional Level Types
Badu Hill quarry Pegmatite
Llano City
Llano County County
Texas State
USA Country

Regional Level Types
Badu Hill quarry	Pegmatite
Llano	City
Llano County	County
Texas	State
USA	Country

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Zone of hydrothermal alteration/deposition

Badu Hill quarry, Llano, Llano County, Texas, USA

Sulfide/Fluorite Pocket

Badu Hill quarry, Llano, Llano County, Texas, USA

Fluorite/Pyrite/REM seam in microcline

Badu Hill quarry, Llano, Llano County, Texas, USA

Zone of hydrothermal alteration/deposition

Badu Hill quarry, Llano, Llano County, Texas, USA

Sulfide/Fluorite Pocket

Badu Hill quarry, Llano, Llano County, Texas, USA

Fluorite/Pyrite/REM seam in microcline

Badu Hill quarry, Llano, Llano County, Texas, USA

Zone of hydrothermal alteration/deposition

Badu Hill quarry, Llano, Llano County, Texas, USA

Sulfide/Fluorite Pocket

Badu Hill quarry, Llano, Llano County, Texas, USA

Latitude & Longitude (WGS84):

30° 43' 26'' North , 98° 28' 31'' West

Latitude & Longitude (decimal):

Type:

Köppen climate type:

Cfa : Humid subtropical climate

Nearest Settlements:

Place	Population	Distance
Buchanan Dam	1,519 (2011)	4.6km
Kingsland	6,030 (2011)	8.0km
Buchanan Lake Village	692 (2011)	14.3km
Highland Haven	452 (2017)	15.0km
Sunrise Beach Village	731 (2017)	15.2km

Mindat Locality ID:

42294

Long-form identifier:

mindat:1:2:42294:0

GUID (UUID V4):

Other/historical names associated with this locality:

Badu Hill pegmatite; Badu Feldspar Deposit; Badu Hill mine

A Feldspar-REE-U-Th-Co-Au-Ag-Cu-Pb-Ti-As-Gd-Zr-W pegmatite occurrence/mine located 1 mile N of Beverly, 5 miles N25W of Kingsland and 13 miles E of Llano, SW of Buchanan Dam, on private land. Directions: 2.3 miles W of Texas highway 261 on Texas highway 16, then 0.8 mile S. Discovered in 1936 by Tillie Badu Moss. The USGS MRDS database accuracy for this locality is not presented.

A pegmatite REE deposit (Mineral occurrence model information: Model code: 38; USGS model code: 13e; Deposit model name: Feldspar contained in pegmatites), hosted in pegmatite. The ore body is 18.29 meters thick, 106.68 meters wide and 213.36 meters long and has a depth-to-top of 0 meters. Associated rocks include Neoproterozoic marble and Packsaddle Schist. Local rocks include the Precambrian (Proterozoic) Town Mountain Granite.
Workings include surface openings comprised of a quarrying operation with a 15 foot high quarry wall, overall length of 60.96 meters and an overall width of 21.34 meters. 3 holes were drilled and 6 test p[its dug by the U.S.; Bureau of Mines in 1946.

Analytical data results: 63-69% SiO2, 19-20% Al2O3, 7-12% K2O, <0.15% Fe2O3, 0.02-0.05% MgO, 0.06-0.6 CaO, 3-4% Na2O, 0.13% P2O5.

Reserve/resources data: This deposit is known to extend 28 to 45 feet below the bottom of the 15 foot quarry wall (1946).

The quarry is on private property and the general public can not access the quarry.
See messageboard at https://www.mindat.org/mesg-662897.html

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.

ⓘ Feldspar

ⓘ Rare Earths

Mineral List

39 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

ⓘ Marble

ⓘ 'Pegmatite'

ⓘ Schist

Detailed Mineral List:

ⓘ Acanthite

Formula: Ag₂S

Description: Occurs in Sulfide-zones, along with Gold and Copper.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Kelly Nash (also, Art Smith)

ⓘ 'Allanite Group'

Formula: (A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Anatase

Formula: TiO₂

Description: Occurs in limonite matrix.

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Arsenopyrite

Formula: FeAsS

Description: Occurs with Pyrite, as dark-silver inclusions.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Baryte

Formula: BaSO₄

References:

in the personal collection of Jennifer Cindrich

ⓘ Baryte var. Strontium-bearing Baryte

Formula: (Ba,Sr)SO₄

References:

in the personal collection of Jennifer Cindrich

ⓘ 'Bastnäsite'

Formula: (Ce/Nd/Y/REE)(CO₃)F

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Bornite

Formula: Cu₅FeS₄

Description: Occurs as coatings on Quartz, and sulfide-dwelling Microcline.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Chalcanthite

Formula: CuSO₄ · 5H₂O

Description: Efflorvescent deposits occur by a natural acid-pool.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Chalcocite

Formula: Cu₂S

Description: Occurs as coatings on quartz, and as MXLS in Limonite.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Chalcopyrite

Formula: CuFeS₂

Description: Occurs in Sulfide-zones, along with Copper.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Churchite-(Y)

Formula: Y(PO₄) · 2H₂O

Description: Occurs as small sprays in sulfide zones.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Cobaltite

Formula: CoAsS

Description: Small amounts found near the acid-pool.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

Franklin Roberts

ⓘ 'Fergusonite'

Description: Occurs as crystal inclusions in pyrite.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Fluorite

Formula: CaF₂

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ 'Gadolinite'

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Galena

Formula: PbS

Description: Occurs with Pyrite.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Goethite

Formula: Fe³⁺O(OH)

Description: Occurs in Fe-sulfide zones along with Limonite.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Grossular

Formula: Ca₃Al₂(SiO₄)₃

References:

Self-collected by Franklin Roberts, May, 2010.

ⓘ 'Gummite'

Colour: Vivid yellow

Description: Occurs as coatings in sulfide-zones, along with Uraninite

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

in the collection of Jennifer Cindrich

ⓘ Hematite

Formula: Fe₂O₃

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Jarosite

Formula: KFe³⁺₃(SO₄)₂(OH)₆

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ 'Limonite'

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Melanterite

Formula: Fe²⁺(H₂O)₆SO₄ · H₂O

References:

David Aldridge specimen

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Native Copper

Formula: Cu

Description: Copper occurs along with gold in the sulfide zones.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Native Gold

Formula: Au

Description: Gold MXLS found in sulfide zones.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Native Silver

Formula: Ag

Description: Occurs in Sulfide-zones, along with Gold and Copper.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Pyrite

Formula: FeS₂

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Quartz

Formula: SiO₂

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Rutile

Formula: TiO₂

References:

Visual ID, Art Smith specimen (K. Nash)

ⓘ Samarskite-(Y) ?

Formula: YFe³⁺Nb₂O₈

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ 'Scapolite'

References:

Self-collected by Franklin Roberts, May, 2010.

ⓘ Scheelite

Formula: Ca(WO₄)

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Synchysite-(Y)

Formula: CaY(CO₃)₂F

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Thorite var. Thorogummite

Formula: (Th,U)(SiO₄)_1-x(OH)_4x

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

ⓘ Torbernite

Formula: Cu(UO₂)₂(PO₄)₂ · 12H₂O

Habit: Tabular

Colour: Green

Description: Small, green tabular crystals found in Cu-rich zones.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ 'Tourmaline'

Formula: AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z

References:

Am Min 67:180

ⓘ Uraninite

Formula: UO₂

Description: Occurs as MXLS in sulfide-zones. Pseudomorphs of Gummite and Thorogummite are seen.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Uranophane

Formula: Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O

Description: Occurs as small tufts in sulfide zone.

References:

Self-collected by David Aldridge, March, 2006.

ⓘ Vesuvianite

Formula: Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉

References:

Self-collected by Franklin Roberts, May, 2010.

ⓘ Wollastonite

Formula: Ca₃(Si₃O₉)

References:

Self-collected by Franklin Roberts, May, 2010.

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

Gallery:

KAl₂(AlSi₃O₁₀)(OH)₂ⓘ Muscovite

Muscovite, etc.

Badu Hill quarry, Llano, Llano County, Texas, USA

Muscovite, etc.

Badu Hill quarry, Llano, Llano County, Texas, USA

Muscovite, etc.

Badu Hill quarry, Llano, Llano County, Texas, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Copper	1.AA.05	Cu
ⓘ	Native Gold	1.AA.05	Au
ⓘ	Native Silver	1.AA.05	Ag
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Bornite	2.BA.15	Cu₅FeS₄
ⓘ	Acanthite	2.BA.35	Ag₂S
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	Cobaltite	2.EB.25	CoAsS
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Samarskite-(Y) ?	4.DB.25	YFe³⁺Nb₂O₈
ⓘ	Anatase	4.DD.05	TiO₂
ⓘ	Uraninite	4.DL.05	UO₂
Group 5 - Nitrates and Carbonates
ⓘ	Synchysite-(Y)	5.BD.20c	CaY(CO₃)₂F
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	var. Strontium-bearing Baryte	7.AD.35	(Ba,Sr)SO₄
ⓘ	Jarosite	7.BC.10	KFe³⁺₃(SO₄)₂(OH)₆
ⓘ	Chalcanthite	7.CB.20	CuSO₄ · 5H₂O
ⓘ	Melanterite	7.CB.35	Fe²⁺(H₂O)₆SO₄ · H₂O
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	Scheelite	7.GA.05	Ca(WO₄)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Churchite-(Y)	8.CJ.50	Y(PO₄) · 2H₂O
ⓘ	Torbernite	8.EB.05	Cu(UO₂)₂(PO₄)₂ · 12H₂O
Group 9 - Silicates
ⓘ	Grossular	9.AD.25	Ca₃Al₂(SiO₄)₃
ⓘ	Thorite var. Thorogummite	9.AD.30	(Th,U)(SiO₄)_1-x(OH)_4x
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Uranophane	9.AK.15	Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O
ⓘ	Vesuvianite	9.BG.35	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Wollastonite	9.DG.05	Ca₃(Si₃O₉)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Bastnäsite'	-	(Ce/Nd/Y/REE)(CO₃)F
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Gummite'	-
ⓘ	'Limonite'	-
ⓘ	'Tourmaline'	-	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Scapolite'	-
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Gadolinite'	-
ⓘ	'Fergusonite'	-
ⓘ	'Allanite Group'	-	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Chalcanthite	CuSO₄ · 5H₂O
H	ⓘ Churchite-(Y)	Y(PO₄) · 2H₂O
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
H	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
H	ⓘ Uranophane	Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O
H	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
H	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
B	Boron
B	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
C	ⓘ Synchysite-(Y)	CaY(CO₃)₂F
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Anatase	TiO₂
O	ⓘ Baryte	BaSO₄
O	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Chalcanthite	CuSO₄ · 5H₂O
O	ⓘ Churchite-(Y)	Y(PO₄) · 2H₂O
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
O	ⓘ Scheelite	Ca(WO₄)
O	ⓘ Synchysite-(Y)	CaY(CO₃)₂F
O	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
O	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Uraninite	UO₂
O	ⓘ Uranophane	Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O
O	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
O	ⓘ Wollastonite	Ca₃(Si₃O₉)
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
O	ⓘ Baryte var. Strontium-bearing Baryte	(Ba,Sr)SO₄
O	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
F	Fluorine
F	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Fluorite	CaF₂
F	ⓘ Synchysite-(Y)	CaY(CO₃)₂F
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Uranophane	Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O
Si	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Si	ⓘ Wollastonite	Ca₃(Si₃O₉)
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Si	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
P	Phosphorus
P	ⓘ Churchite-(Y)	Y(PO₄) · 2H₂O
P	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
S	Sulfur
S	ⓘ Acanthite	Ag₂S
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Baryte	BaSO₄
S	ⓘ Bornite	Cu₅FeS₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcanthite	CuSO₄ · 5H₂O
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Cobaltite	CoAsS
S	ⓘ Galena	PbS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
S	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Baryte var. Strontium-bearing Baryte	(Ba,Sr)SO₄
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Scheelite	Ca(WO₄)
Ca	ⓘ Synchysite-(Y)	CaY(CO₃)₂F
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Uranophane	Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O
Ca	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Ca	ⓘ Wollastonite	Ca₃(Si₃O₉)
Ti	Titanium
Ti	ⓘ Anatase	TiO₂
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Bornite	Cu₅FeS₄
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
Fe	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Fe	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Co	Cobalt
Co	ⓘ Cobaltite	CoAsS
Cu	Copper
Cu	ⓘ Bornite	Cu₅FeS₄
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcanthite	CuSO₄ · 5H₂O
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Native Copper	Cu
Cu	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
As	ⓘ Cobaltite	CoAsS
Sr	Strontium
Sr	ⓘ Baryte var. Strontium-bearing Baryte	(Ba,Sr)SO₄
Y	Yttrium
Y	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
Y	ⓘ Churchite-(Y)	Y(PO₄) · 2H₂O
Y	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Y	ⓘ Synchysite-(Y)	CaY(CO₃)₂F
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Nb	Niobium
Nb	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Ag	Silver
Ag	ⓘ Acanthite	Ag₂S
Ag	ⓘ Native Silver	Ag
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Ba	ⓘ Baryte var. Strontium-bearing Baryte	(Ba,Sr)SO₄
Ce	Cerium
Ce	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
Nd	Neodymium
Nd	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
W	Tungsten
W	ⓘ Scheelite	Ca(WO₄)
Au	Gold
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS
Th	Thorium
Th	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
U	Uranium
U	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
U	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
U	ⓘ Uraninite	UO₂
U	ⓘ Uranophane	Ca(UO₂)₂(SiO₃OH)₂ · 5H₂O

Other Databases

Link to USGS MRDS:	10065153

Other Regions, Features and Areas containing this locality

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Granite-Rhyolite ProvinceMagmatic Province
Shawnee DomainDomain

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References

USGS MRDS ID #TC40188.

Chelf, C.R. (1942) A New Feldspar Deposit in Llano County, Texas. Texas Bureau of Economic Geology MRSC 45, 5 pages.

Barnes, V.E. (1945) Feldspar in the Central Mineral Region of Texas. In: (1946) Texas Mineral Resources 1943, University of Texas Bureau Economic Geology Bulletin 4301, 390 pages, at 93-104.

Huseman, G.W., McMillan, W.D. (1947) Badu Feldspar Deposit, Llano County, Texas. U.S. Bureau of Mines Report of Investigation RI 4102, 11 pages.

Barnes, V.E. (1976) Geology of the Kingsland Quadrangle, Llano and Burnet Counties, Texas. Texas Bureau of Economic Geology GQ 41, 25 pages.

Brown, G.E.Jnr. (1982) The mineralogy of pegmatites. American Mineralogist, 67:2, 180-189.

Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

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Badu Hill quarry, Llano, Llano County, Texas, USAiRegional Level TypesBadu Hill quarryPegmatite LlanoCity Llano CountyCounty TexasState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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References

Badu Hill quarry, Llano, Llano County, Texas, USA i
Regional Level Types
Badu Hill quarry Pegmatite
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