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:
Big Bend National Park, Brewster Co., Texas, USA

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

mindat Locality ID: 35510
mindat URL: http://www.mindat.org/loc-35510.html

Tectonic Settings:

Total number of sublocalities beneath "Big Bend National Park, Brewster Co., Texas, USA": 9
Total number of bottom-level sublocalities: 9

Number of Child Localities: 9
Child Localities:
Bee Mountain
Bone Spring
Chisos Mts
Flower Cave
Location 159
Mariscal Mine (Ellis Mine; Viviana Mine; Lindsey Mine)
Rattlesnake Mts
Unnamed Localities At Mariscal Mountain (EM-BR-X29-2)
Unnamed Localities Near Boquillas (EM-BR-W31-1)

Latitude: 29°14'3"N
Longitude: 103°15'13"W
Decimal Degree (lat, lon): 29.234166666667,-103.25361111111

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.

Analcime	Apatite	Calcite	Clay	Clinozoisite	Epidote	Feldspar	Fluorite	Garnet	Mica
Natrolite	None	Prehnite	Pyrite	Pyroxene	Quartz	Rhabdophane	Rocksalt	Sapphirine	Smectite-vermiculite
Spinel	Titanite	Tridymite

Aegirine ()*	Albite ()*	Analcime ()*	Augite ()*	Bassanite ()*
Calcite ()*	Cinnabar ()*	Clintonite ()*	Darapskite ()*	Epidote ()*
Fluorapatite ()*	Fluorite ()*	Grossular ()*	Halite ()*	Magnetite ()*
Montmorillonite ()*	Natrolite ()*	Nepheline ()*	Orthoclase ()*	Prehnite ()*
Pyrite ()*	Quartz ()*	Rhönite ()*	Titanite ()*	Zoisite ()*

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: Al C Ca Cl F Fe H Hg K Mg N Na O P S Si Ti

Elements from minerals reported directly at this locality: Ca H O S

Structural Groups for minerals in this locality:
Analcime Apatite Calcite Clay Clinozoisite Epidote Feldspar Fluorite Garnet Mica
Natrolite None Prehnite Pyrite Pyroxene Quartz Rhabdophane Rocksalt Sapphirine Smectite-vermiculite
Spinel Titanite Tridymite

25 IMA Minerals at location:

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	2	269705,269711	8803
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	48	26	3	269705,269706,269711	1627
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	48	26	2	269706,269709	2060
Bassanite ()*	Rhabdophane	Ca(SO₄)·0.5H₂O	48	26	0		82
Calcite ()*	Calcite	Ca(CO₃)	38	26	4	269705,269707,269710,269711	27770
Cinnabar ()*	None	HgS			1	269710	2600
Clintonite ()*	Mica Clay	CaAlMg₂(SiAl₃O₁₀)(OH)₂			1	269705	86
Darapskite ()*	None	Na₃(SO₄)(NO₃)·H₂O			1	269708	31
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	38	26	2	269705,269711	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	38	26	1	269711	2740
Fluorite ()*	Fluorite	CaF₂			2	269712,269713	9617
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			1	269705	1544
Halite ()*	Rocksalt	NaCl			1	269708	1398
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	38	26	1	269711	14899
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O			1	269705	1508
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	48	26	1	269706	1236
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)			1	269709	884
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	38	26	1	269711	2349
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	269705	1898
Pyrite ()*	Pyrite	FeS₂			1	269710	39462
Quartz ()*	Quartz	SiO₂			1	269705	61156
Rhönite ()*	Sapphirine	Ca₄[Mg₈Fe³⁺₂Ti₂]O₄[Si₆Al₆O₃₆]			1	269709	47
Titanite ()*	Titanite	CaTi(SiO₄)O			1	269709	4899
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			1	269705	1025

14 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Num	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

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...