Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Brewster Co., Texas, USA

Oldest recorded age at locality: 48
Youngest recorded age at locality: 26

mindat Locality ID: 16765
mindat URL: http://www.mindat.org/loc-16765.html

Tectonic Settings:

Total number of sublocalities beneath "Brewster Co., Texas, USA": 118
Total number of bottom-level sublocalities: 102

Number of Child Localities: 30
Child Localities:
Adobe Walls Mountain
Agua Fria Ranch
Alpine
Alpine Bentonite Pit
Altuda Mountain District
Anderson Ranch Prospect
Aqua Fria Mountain
Bentonite Pit
Big Bend National Park
Black Gap Area
Black Mountain
Buck Hill Quadrangle
Central Part
Christmas Mts
Davis Mts
Fizzel Flat
Marathon
Needle Peak (Sierra Aguja)
Nevill Ranch Anomaly
Persimmon Gap
Santiago Mts
Solitario
Stillwell Mountain Prospect (Stillwell Ranch)
Terlingua Creek
Terlingua District
Unnamed Locality (FS-BR-P26-3)
Unnamed Prospect At Abobe Walls Mountain (EM-BR-U26-3)
Unnamed Prospect On Hill 4142 (EM-BR-T26-1)
Unnamed Prospect On Hill 4363 (EM-BR-T27-1)
Unspecified Graphite Occurrence [1]

Latitude: 29°42'38"N
Longitude: 103°27'53"W
Decimal Degree (lat, lon): 29.710555555556,-103.46472222222

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Allophane	Alunite	Amorphous	Analcime	Apatite	Aphthitalite	Aragonite	Arsenopyrite	Autunite	Baryte
Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum	Cristobalite	Diaspore	Djerfisherite	Epidote
Epsomite	Feldspar	Fluorite	Garnet	Gypsum	Haxonite	Iron	Kaolinite	Marcasite	Melanterite
Mica	Molybdenite	Natrolite	None	Not in a structural group	Olivine	Perovskite	Prehnite	Pyrite	Pyroxene
Quartz	Rhabdophane	Rocksalt	Rutile	Sapphirine	Scacchite	Scheelite	Smectite-vermiculite	Sphalerite	Spinel
Spurrite-Afwillite	Titanite	Tridymite	Vesuvianite	Wollastonite

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Ba Br C Ca Cl Cr Cu F Fe H Hg K Mg Mn Mo N Na Ni O P Pb S Se Si Ti U V Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Alunite Amorphous Analcime Apatite Aphthitalite Aragonite Arsenopyrite Autunite Baryte
Calcite Chalcopyrite Clay Clinozoisite Copper Corundum Cristobalite Diaspore Djerfisherite Epidote
Epsomite Feldspar Fluorite Garnet Gypsum Haxonite Iron Kaolinite Marcasite Melanterite
Mica Molybdenite Natrolite None Not in a structural group Olivine Perovskite Prehnite Pyrite Pyroxene
Quartz Rhabdophane Rocksalt Rutile Sapphirine Scacchite Scheelite Smectite-vermiculite Sphalerite Spinel
Spurrite-Afwillite Titanite Tridymite Vesuvianite Wollastonite

111 IMA Minerals at location:

Aegirine ()*	Albite ()*	Alunite ()*	Analcime ()*	Anglesite ()*
Anhydrite ()*	Anorthite ()*	Aragonite ()*	Arsenopyrite ()*	Augite ()*
Autunite ()*	Baryte ()*	Bassanite ()*	Beidellite ()*	Bredigite ()*
Calcite ()*	Calomel ()*	Carnotite ()*	Caswellsilverite ()*	Cerussite ()*
Chalcopyrite ()*	Chromite ()*	Chrysocolla ()*	Cinnabar ()*	Clausthalite ()*
Clintonite ()*	Cohenite ()*	Comancheite ()*	Corderoite ()*	Cristobalite ()*
Darapskite ()*	Daubréelite ()*	Diopside ()*	Djerfisherite ()*	Edgarbaileyite ()*
Eglestonite ()*	Enstatite ()*	Epidote ()*	Epsomite ()*	Ferrimolybdite ()*
Fluorapatite ()*	Fluorite ()*	Forsterite ()*	Galena ()*	Gianellaite ()*
Goethite ()*	Graphite ()*	Grossular ()*	Gypsum ()*	Halite ()*
Haxonite ()*	Hematite ()*	Hemimorphite ()*	Ilmenite ()*	Iron ()*
Jarosite ()*	Kaolinite ()*	Kilchoanite ()*	Kleinite ()*	Larnite ()*
Magnetite ()*	Marcasite ()*	Melanterite ()*	Mercury ()*	Merwinite ()*
Metacinnabar ()*	Molybdenite ()*	Monticellite ()*	Montmorillonite ()*	Montroydite ()*
Mosesite ()*	Muscovite ()*	Natrolite ()*	Naumannite ()*	Nepheline ()*
Niningerite ()*	Niter ()*	Nitratine ()*	Oldhamite ()*	Opal ()*
Orthoclase ()*	Perovskite ()*	Pinchite ()*	Prehnite ()*	Pyrite ()*
Pyrolusite ()*	Quartz ()*	Rankinite ()*	Rhönite ()*	Sanidine ()*
Schröckingerite ()*	Scorodite ()*	Siderite ()*	Silver ()*	Sphalerite ()*
Spinel ()*	Spurrite ()*	Taenite ()*	Terlinguacreekite ()*	Terlinguaite ()*
Tetrataenite ()*	Tilleyite ()*	Titanite ()*	Troilite ()*	Tyuyamunite ()*
Uraninite ()*	Uranophane-α ()*	Vesuvianite ()*	Wollastonite ()*	Wulfenite ()*
Zoisite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	38	26	1	269711	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	38	26	4	269705,269711,269720,269782	8803
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆			2	269757,269783	966
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	48	26	8	269705,269706,269711,269720,269735,269757,269782,269788	1627
Anglesite ()*	Baryte	Pb(SO₄)			1	269697	2734
Anhydrite ()*	Not in a structural group	Ca(SO₄)	38	32	3	269724,269757,269771	1588
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)			1	269694	1036
Aragonite ()*	Aragonite	Ca(CO₃)			5	269694,269724,269745,269757,269767	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS			1	269739	9052
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	48	26	2	269706,269709	2060
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O			3	269701,269746,269751	1272
Baryte ()*	Baryte	Ba(SO₄)	38	32	9	269715,269717,269741,269743,269749,269757,269767,269770,269772	11547
Bassanite ()*	Rhabdophane	Ca(SO₄)·0.5H₂O	48	26	1	269704	82
Beidellite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3Al₂(Si,Al)₄O₁₀(OH)₂·nH₂O	38	26	1	269757	85
Bredigite ()*	None	Ca₇Mg(SiO₄)₄			1	269732	13
Calcite ()*	Calcite	Ca(CO₃)	48	26	40	269694,269697,269699,269705,269707,269710,269711,269716,269719,269722,269723,269724,269725,269726,269729,269730,269731,269735,269757,269758,269759,269760,269761,269762,269764,269765,269766,269767,269768,269769,269770,269771,269775,269776,269777,269782,269783,269785,269788,269799	27770
Calomel ()*	None	HgCl	38	32	4	269757,269762,269771,269772	91
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O	38	26	8	269688,269701,269718,269722,269737,269746,269755,269757	1184
Caswellsilverite ()*	Scacchite	NaCrS₂			1	269742	5
Cerussite ()*	Aragonite	Pb(CO₃)			1	269697	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	269697	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄			1	269784	3902
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			1	269699	3531
Cinnabar ()*	None	HgS	48	32	30	269710,269722,269723,269724,269725,269726,269748,269757,269758,269759,269760,269761,269762,269764,269766,269767,269768,269769,269770,269771,269774,269775,269776,269777,269780,269783,269785,269787,269788,269799	2600
Clausthalite ()*	Rocksalt	PbSe			1	269720	281
Clintonite ()*	Mica Clay	CaAlMg₂(SiAl₃O₁₀)(OH)₂			2	269705,269782	86
Cohenite ()*	Perovskite	CFe₃			1	269784	77
Comancheite ()*	None	Hg²⁺₅₅N^3-₂₄(NH₂,OH)₄(Cl,Br)₃₄	38	32	3	269757,269767,269771	2
Corderoite ()*	None	Hg₃S₂Cl₂	38	32	1	269771	16
Cristobalite ()*	Cristobalite	SiO₂			1	269720	453
Darapskite ()*	None	Na₃(SO₄)(NO₃)·H₂O			1	269708	31
Daubréelite ()*	Spinel	FeCr₂S₄			1	269742	157
Diopside ()*	Pyroxene	CaMgSi₂O₆			2	269742,269784	4135
Djerfisherite ()*	Djerfisherite	K₆(Fe,Cu,Ni)₂₅S₂₆Cl			1	269742	60
Edgarbaileyite ()*	None	Hg¹⁺₆Si₂O₇	38	32	1	269771	6
Eglestonite ()*	None	([Hg¹⁺]₂)₃OCl₃(OH)	38	32	3	269757,269770,269771	36
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			2	269742,269784	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	38	26	3	269705,269711,269782	8173
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	38	26	1	269757	484
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O	48	38	3	269722,269723,269725	345
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	38	26	1	269711	2740
Fluorite ()*	Fluorite	CaF₂	48	38	26	269697,269712,269713,269722,269723,269725,269726,269727,269728,269729,269730,269731,269757,269760,269767,269769,269770,269777,269789,269790,269791,269792,269794,269801,269802,269803	9617
Forsterite ()*	Olivine	Mg₂(SiO₄)			2	269742,269784	1188
Galena ()*	Rocksalt	PbS			1	269697	24243
Gianellaite ()*	None	(Hg₂N)₂(SO₄)(H₂O)_x	38	32	1	269771	3
Goethite ()*	Diaspore	FeO(OH)	38	32	4	269697,269757,269761,269771	7437
Graphite ()*	None	C			2	269784,269804	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			3	269705,269732,269782	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	48	32	7	269722,269723,269724,269725,269757,269761,269771	6890
Halite ()*	Rocksalt	NaCl			1	269708	1398
Haxonite ()*	Haxonite	(Fe,Ni)₂₃C₆			1	269784	26
Hematite ()*	Corundum	Fe₂O₃	38	32	6	269697,269700,269724,269757,269762,269771	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O			1	269697	1689
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	38	26	1	269757	5433
Iron ()*	Iron	Fe			2	269742,269784	1089
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	38	32	5	269757,269761,269769,269771,269783	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			5	269697,269702,269757,269761,269767	5591
Kilchoanite ()*	None	Ca₆(SiO₄)(Si₃O₁₀)			1	269732	9
Kleinite ()*	None	(Hg₂N)(Cl,SO₄)·nH₂O	38	32	2	269757,269771	3
Larnite ()*	Not in a structural group	Ca₂(SiO₄)			1	269732	48
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	38	26	3	269711,269732,269784	14899
Marcasite ()*	Marcasite	FeS₂			4	269757,269761,269769,269783	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	38	26	1	269757	915
Mercury ()*	None	Hg	38	32	3	269757,269770,269771	397
Merwinite ()*	Aphthitalite	Ca₃Mg(SiO₄)₂			1	269732	23
Metacinnabar ()*	Sphalerite	HgS	38	32	4	269757,269767,269771,269785	255
Molybdenite ()*	Molybdenite	MoS₂	48	38	6	269697,269722,269723,269725,269726,269753	5800
Monticellite ()*	Olivine	CaMg(SiO₄)			1	269732	153
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O			2	269705,269782	1508
Montroydite ()*	None	HgO	38	32	2	269757,269771	29
Mosesite ()*	None	(Hg₂N)Cl	38	32	2	269757,269771	6
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	269697	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	48	26	4	269706,269720,269735,269757	1236
Naumannite ()*	Not in a structural group	Ag₂Se			1	269720	192
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)			1	269709	884
Niningerite ()*	Rocksalt	MgS			1	269742	28
Niter ()*	None	K(NO₃)			1	269702	181
Nitratine ()*	Calcite	Na(NO₃)			1	269702	91
Oldhamite ()*	Rocksalt	CaS			1	269742	58
Opal ()*	Amorphous	SiO₂·nH₂O			4	269692,269694,269724,269734	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	38	26	2	269697,269711	2349
Perovskite ()*	Perovskite	CaTiO₃			2	269732,269784	495
Pinchite ()*	None	Hg₅O₄Cl₂	38	32	2	269757,269771	1
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			2	269705,269782	1898
Pyrite ()*	Pyrite	FeS₂			13	269697,269710,269724,269726,269753,269757,269761,269765,269769,269774,269783,269785,269788	39462
Pyrolusite ()*	Rutile	MnO₂	38	26	1	269757	3106
Quartz ()*	Quartz	SiO₂	48	32	28	269689,269690,269691,269692,269693,269694,269697,269705,269719,269720,269723,269726,269727,269728,269729,269731,269734,269739,269740,269744,269745,269748,269751,269753,269757,269767,269769,269771	61156
Rankinite ()*	None	Ca₃Si₂O₇			1	269732	25
Rhönite ()*	Sapphirine	Ca₄[Mg₈Fe³⁺₂Ti₂]O₄[Si₆Al₆O₃₆]			1	269709	47
Sanidine ()*	Feldspar	K(AlSi₃O₈)			1	269804	598
Schröckingerite ()*	None	NaCa₃(UO₂)(SO₄)(CO₃)₃F·10H₂O			2	269688,269737	128
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O			2	269757,269769	1153
Siderite ()*	Calcite	Fe(CO₃)			5	269697,269699,269700,269724,269726	6417
Silver ()*	Copper	Ag	38	26	1	269757	5186
Sphalerite ()*	Sphalerite	ZnS			1	269697	21482
Spinel ()*	Spinel	MgAl₂O₄			1	269784	1934
Spurrite ()*	Spurrite-Afwillite	Ca₅(SiO₄)₂(CO₃)			1	269732	54
Taenite ()*	None	(Ni,Fe)			2	269742,269784	703
Terlinguacreekite ()*	None	Hg²⁺₃O₂Cl₂	38	32	2	269771,269772	2
Terlinguaite ()*	None	Hg₂OCl	38	32	4	269757,269770,269771,269772	22
Tetrataenite ()*	None	FeNi			1	269784	116
Tilleyite ()*	None	Ca₅Si₂O₇(CO₃)₂			1	269732	19
Titanite ()*	Titanite	CaTi(SiO₄)O	38	26	2	269709,269757	4899
Troilite ()*	None	FeS			2	269742,269784	1044
Tyuyamunite ()*	None	Ca(UO₂)₂(VO₄)₂·5-8H₂O			2	269688,269737	628
Uraninite ()*	Fluorite	UO₂			1	269701	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	38	26	2	269751,269757	890
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			1	269732	1395
Wollastonite ()*	Wollastonite	CaSiO₃			1	269732	1247
Wulfenite ()*	Scheelite	PbMoO₄			1	269697	1655
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			2	269705,269782	1025

18 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Prioritized?	Sample Num	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-3633	38	26	32±6			3633			41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3634	38	26	32±6			3634			41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3635	38	26	32±6			3635			41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3639	48	38	47+1/-9			3639			41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3641	38	26	31.8+6.2/-5.8			3641			41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-12696	38	26	31+7/-5			12696			41949	Chisos Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33420	38	26	28.6+9.4/-2.6			33420			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33421	38	26	28.6+9.4/-2.6			33421			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33422	38	26	28.6+9.4/-2.6			33422			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33423	38	26	28.6+9.4/-2.6			33423			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33424	38	26	28.6+9.4/-2.6			33424			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33425	38	26	28.6+9.4/-2.6			33425			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33426	38	26	28.6+9.4/-2.6			33426			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33427	38	26	28.6+9.4/-2.6			33427			41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-18241	48	38	42+6/-4			18241			41962	Christmas Mountain Deposit (Piedra Azul), Christmas Mts, Brewster Co., Texas, USA	NAVDAT	NAVDAT
Hg-00039	38	32		Ar-Ar, K-Ar	high		Calomel, Cinnabar, Comancheite, Corderoite, Edgarbaileyite, Gianellaite, Kleinite, Mercury, Metacinnabar, Montroydite, Mosesite, Pinchite, Terlinguaite, Eglestonite, Terlinguacreekite	Hg	4128	Mariposa Mine (California Mountain Mine), Terlingua District, Brewster Co., Texas, USA	Thompson (1954); Henry et al. (1997)
NAVDAT-12658	38	26	34.3+3.7/-8.3			12658			42619	Unnamed Prospect (EM-BR-V26-8), Terlingua District, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33625	38	26	36.8+1.2/-10.8			33625			42703	Unnamed Locality (FS-BR-P26-3), Brewster Co., Texas, USA	NAVDAT	NAVDAT

Sample	Source Locality	Reference URL
R060731	Mariposa Mine (California Mountain Mine), Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R060731
R060492	Mariposa Mine (California Mountain Mine), Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R060492
R070499	Terlingua, Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R070499
R060734	Terlingua, Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R060734
R150103	Terlingua, Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R150103
R140877	Terlingua, Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R140877
R140878	Terlingua, Terlingua District, Brewster Co., Texas, USA	https://rruff.info/R140878

All locality data graciously provided by mindat.org

All age data...