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:
Study Butte, Terlingua District, Brewster Co., Texas, USA


mindat Locality ID: 241339
mindat URL: http://www.mindat.org/loc-241339.html

Tectonic Settings:

Total number of sublocalities beneath "Study Butte, Terlingua District, Brewster Co., Texas, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Bee Mountain
Brewster County Consolidated Mine (Study Butte Mine; Rainbow Mine; Big Bend; Texas-Almaden)
Study Butte Meteorite

Latitude: 29°19'20"N
Longitude: 103°31'20"W
Decimal Degree (lat, lon): 29.322222222222,-103.52222222222
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

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 Cr Fe H Hg K Mg Na Ni O S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteAnalcimeCalciteClayClinozoisiteEpidoteFeldsparGarnetHaxoniteIron
MarcasiteMicaNoneOlivinePerovskitePrehnitePyritePyroxeneSmectite-vermiculiteSpinel

28 IMA Minerals at location:
Albite  (*)Alunite  (*)Analcime  (*)Calcite  (*)Chromite  (*)
Cinnabar  (*)Clintonite  (*)Cohenite  (*)Diopside  (*)Enstatite  (*)
Epidote  (*)Forsterite  (*)Graphite  (*)Grossular  (*)Haxonite  (*)
Iron  (*)Jarosite  (*)Magnetite  (*)Marcasite  (*)Montmorillonite  (*)
Perovskite  (*)Prehnite  (*)Pyrite  (*)Spinel  (*)Taenite  (*)
Tetrataenite  (*)Troilite  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)12697828803
Alunite  (*)NoneKAl3(SO4)2(OH)61269783966
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O12697821627
Calcite  (*)CalciteCa(CO3)2269782,26978327770
Chromite  (*)SpinelFe2+Cr2O412697843902
Cinnabar  (*)NoneHgS12697832600
Clintonite  (*)Mica ClayCaAlMg2(SiAl3O10)(OH)2126978286
Cohenite  (*)PerovskiteCFe3126978477
Diopside  (*)PyroxeneCaMgSi2O612697844135
Enstatite  (*)PyroxeneMg2Si2O61269784944
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12697828173
Forsterite  (*)OlivineMg2(SiO4)12697841188
Graphite  (*)NoneC12697842812
Grossular  (*)GarnetCa3Al2(SiO4)312697821544
Haxonite  (*)Haxonite(Fe,Ni)23C6126978426
Iron  (*)IronFe12697841089
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)612697832228
Magnetite  (*)SpinelFe2+Fe3+2O4126978414899
Marcasite  (*)MarcasiteFeS212697835674
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O12697821508
Perovskite  (*)PerovskiteCaTiO31269784495
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)212697821898
Pyrite  (*)PyriteFeS2126978339462
Spinel  (*)SpinelMgAl2O412697841934
Taenite  (*)None(Ni,Fe)1269784703
Tetrataenite  (*)NoneFeNi1269784116
Troilite  (*)NoneFeS12697841044
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)12697821025


No ages have been assigned to this locality yet.
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