Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.




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:
Mason Co., Texas, USA


mindat Locality ID: 4133
mindat URL: http://www.mindat.org/loc-4133.html

Tectonic Settings:

Total number of sublocalities beneath "Mason Co., Texas, USA": 27
Total number of bottom-level sublocalities: 22

Number of Child Localities: 12
Child Localities:
Crystal Hill
Elm Creek
Fly Gap
Fly Gap-Brown Area
Fredonia Area
Grit Area
Grit Stream Tin Deposit
Haynie Mine
Katemcy Area
Streeter Area
Streeter Stream Tin Deposit
Tin Prospect

Latitude: 30°47'54"N
Longitude: 99°14'51"W
Decimal Degree (lat, lon): 30.798333333333,-99.2475

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 Be C Ca Cu F Fe H K Mn Na O P S Si Sn Ti Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneApatiteBerylBrauniteClayClinozoisiteCorundumEpidoteFeldsparFluorite
GarnetMalachiteMicaNoneNot in a structural groupPyriteQuartzRutileSpinelTopaz
TourmalineZircon

26 IMA Minerals at location:
Albite  (*)Anatase  (*)Azurite  (*)Beryl  (*)Braunite  (*)
Cassiterite  (*)Chrysocolla  (*)Epidote  (*)Fluorapatite  (*)Fluorite  (*)
Hausmannite  (*)Hematite  (*)Ilmenite  (*)Magnetite  (*)Malachite  (*)
Microcline  (*)Muscovite  (*)Pyrite  (*)Pyrolusite  (*)Quartz  (*)
Rutile  (*)Schorl  (*)Sillimanite  (*)Spessartine  (*)Topaz  (*)
Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)15270742,270745,270746,270748,270749,270750,270751,270755,270756,270757,270758,270760,270761,270762,2707638803
Anatase  (*)Not in a structural groupTiO22270745,2707462162
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)212707535509
Beryl  (*)BerylBe3Al2Si6O182270745,2707464286
Braunite  (*)BrauniteMn2+Mn3+6O8(SiO4)2270742,270743483
Cassiterite  (*)RutileSnO215270748,270749,270750,270751,270752,270755,270756,270757,270758,270760,270761,270762,270763,270764,2707655171
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12707533531
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)2270743,2707538173
Fluorapatite  (*)ApatiteCa5(PO4)3F3270743,270745,2707462740
Fluorite  (*)FluoriteCaF210270745,270746,270748,270749,270750,270751,270755,270756,270757,2707589617
Hausmannite  (*)SpinelMn2+Mn3+2O42270742,270743350
Hematite  (*)CorundumFe2O35270739,270742,270743,270745,27074614640
Ilmenite  (*)CorundumFe2+Ti4+O312707435433
Magnetite  (*)SpinelFe2+Fe3+2O4127074314899
Malachite  (*)MalachiteCu2(CO3)(OH)2127075312537
Microcline  (*)FeldsparK(AlSi3O8)14270745,270746,270748,270749,270750,270751,270755,270756,270757,270758,270760,270761,270762,2707634924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)214270745,270746,270748,270749,270750,270751,270755,270756,270757,270758,270760,270761,270762,27076317380
Pyrite  (*)PyriteFeS2127075339462
Pyrolusite  (*)RutileMnO212707423106
Quartz  (*)QuartzSiO29270739,270743,270745,270746,270751,270755,270756,270757,27075861156
Rutile  (*)RutileTiO22270745,2707465614
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)5270751,270755,270756,270757,2707582705
Sillimanite  (*)Not in a structural groupAl2SiO512707401516
Spessartine  (*)GarnetMn2+3Al2(SiO4)312707431214
Topaz  (*)TopazAl2SiO4F216270745,270746,270748,270749,270750,270751,270752,270755,270756,270757,270758,270760,270761,270762,270763,2707641476
Zircon  (*)ZirconZr(SiO4)2270745,2707465251



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...