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:
Bethel, Fairfield Co., Connecticut, USA


mindat Locality ID: 29484
mindat URL: http://www.mindat.org/loc-29484.html

Tectonic Settings:

Total number of sublocalities beneath "Bethel, Fairfield Co., Connecticut, USA": 3
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Biermann Quarries (Bethel Quarries) And Tourmaline Ledge
Codfish Hill

Latitude: 41°21'15"N
Longitude: 73°21'1"W
Decimal Degree (lat, lon): 41.354166666667,-73.350277777778
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 Bi C Ca Cl F Fe H K Mg Mo Na O P Pb S Si Ta U Zr 

Elements from minerals reported directly at this locality: Al C Ca F Fe H Mg Na O Si 

Structural Groups for minerals in this locality: 
AmorphousApatiteAragoniteBerylBismutiteCalciteClayColumbiteCorundumFeldspar
FluoriteGarnetMeta-autuniteMicaNoneNot in a structural groupPyriteQuartzScheeliteTourmaline
VesuvianiteZircon

26 IMA Minerals at location:
Albite  (*)Almandine  (*)Annite  (*)Bertrandite  (*)Beryl  (*)
Bismutite  (*)Calcite  (*)Cerussite  (*)Dravite  (*)Fluorapatite  (*)
Grossular  (*)Hematite  (*)Meta-autunite  (*)Microcline  (*)Muscovite  (*)
Opal  (*)Pyrite  (*)Pyromorphite  (*)Quartz  (*)Schorl  (*)
Tantalite-(Fe)  (*)Uraninite  (*)Uranophane-α  (*)Vesuvianite  (*)Wulfenite  (*)
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)11987008803
Almandine  (*)GarnetFe2+3Al2(SiO4)311987002353
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)21198700356
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)21198700606
Beryl  (*)BerylBe3Al2Si6O1811987004286
Bismutite  (*)BismutiteBi2O2(CO3)1198700716
Calcite  (*)CalciteCa(CO3)027770
Cerussite  (*)AragonitePb(CO3)11987004979
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)1198700648
Fluorapatite  (*)ApatiteCa5(PO4)3F11987002740
Grossular  (*)GarnetCa3Al2(SiO4)301544
Hematite  (*)CorundumFe2O3119870014640
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O1198700388
Microcline  (*)FeldsparK(AlSi3O8)11987004924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2119870017380
Opal  (*)AmorphousSiO2·nH2O11987002994
Pyrite  (*)PyriteFeS2119870039462
Pyromorphite  (*)ApatitePb5(PO4)3Cl11987001725
Quartz  (*)QuartzSiO2119870061156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)11987002705
Tantalite-(Fe)  (*)ColumbiteFe2+Ta2O6119870099
Uraninite  (*)FluoriteUO211987002718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O1198700890
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)1001395
Wulfenite  (*)ScheelitePbMoO411987001655
Zircon  (*)ZirconZr(SiO4)11987005251


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

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