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:
Blanco Co., Texas, USA


mindat Locality ID: 41859
mindat URL: http://www.mindat.org/loc-41859.html

Tectonic Settings:

Total number of sublocalities beneath "Blanco Co., Texas, USA": 11
Total number of bottom-level sublocalities: 10

Number of Child Localities: 10
Child Localities:
Blowout Cave Mine
Cindrich/Hall Ranch
Coal Creek Serpentinite (Gould Davis Ranch)
Comache Creek Area
Crabapple Creek Area
Dolostone Quarry
Iron Rock Creek Area
Scott Klett Ranch Prospect
White Creek
White Creek (Ruby Creek And Phillips Ranch)

Latitude: 30°22'27"N
Longitude: 98°28'58"W
Decimal Degree (lat, lon): 30.374166666667,-98.482777777778
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 B C Ca Cr Cu F Fe H K Mg Mn Na Ni O Pb S Si Ti Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleCalciteChalcopyriteClayCorundumFluoriteGarnetMalachiteMarcasite
MicaNoneNot in a structural groupPyriteQuartzRocksaltSerpentineSphaleriteSpinelStaurolite
TalcTourmalineZircon

25 IMA Minerals at location:
Almandine  (*)Anthophyllite  (*)Calcite  (*)Chalcopyrite  (*)Chromite  (*)
Chrysotile  (*)Dolomite  (*)Fluorite  (*)Galena  (*)Ilmenite  (*)
Magnetite  (*)Malachite  (*)Marcasite  (*)Muscovite  (*)Pyrite  (*)
Quartz  (*)Schorl  (*)Sillimanite  (*)Spessartine  (*)Sphalerite  (*)
Staurolite  (*)Talc  (*)Tremolite  (*)Zaratite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)32269653,2696542353
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)21269648718
Calcite  (*)CalciteCa(CO3)2269645,26965127770
Chalcopyrite  (*)ChalcopyriteCuFeS2126964527198
Chromite  (*)SpinelFe2+Cr2O412696463902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41269646951
Dolomite  (*)NoneCaMg(CO3)24269644,269645,269649,2696519895
Fluorite  (*)FluoriteCaF212696509617
Galena  (*)RocksaltPbS2269650,26965124243
Ilmenite  (*)CorundumFe2+Ti4+O312696535433
Magnetite  (*)SpinelFe2+Fe3+2O43269646,269647,26964814899
Malachite  (*)MalachiteCu2(CO3)(OH)2126964512537
Marcasite  (*)MarcasiteFeS212696455674
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2126965317380
Pyrite  (*)PyriteFeS22269645,26965139462
Quartz  (*)QuartzSiO2126965361156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)12696502705
Sillimanite  (*)Not in a structural groupAl2SiO512696531516
Spessartine  (*)GarnetMn2+3Al2(SiO4)312696541214
Sphalerite  (*)SphaleriteZnS2269650,26965121482
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)1269653978
Talc  (*)Clay TalcMg3Si4O10(OH)212696473337
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)23269646,269647,2696482562
Zaratite  (*)AmorphousNi3(CO3)(OH)4·4H2O126964656
Zircon  (*)ZirconZr(SiO4)12696535251


No ages have been assigned to this locality yet.
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