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

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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:
Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA


mindat Locality ID: 264533
mindat URL: http://www.mindat.org/loc-264533.html

Tectonic Settings:

Total number of sublocalities beneath "Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Thomaston Dam Pegmatite
Thomaston Dam Railroad Cut

Latitude: 41°41'42"N
Longitude: 73°3'51"W
Decimal Degree (lat, lon): 41.695,-73.064166666667
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 Ba C Ca Cl Cu F Fe H K Mg Mo Na O P Pb S Si Ti Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleApatiteAragoniteAxiniteBaryteBrookiteCalciteChalcopyriteClay
ClinozoisiteCopiapiteCorundumDiasporeEpidoteFeldsparFluoriteGarnetHarmotomeHeulandite
MelanteriteMicaNickelineNoneNot in a structural groupPyritePyroxeneQuartzRocksaltRutile
ScheeliteSphaleriteSpinelStauroliteStilbiteTitaniteTourmalineZircon

46 IMA Minerals at location:
Actinolite  (*)Albite  (*)Almandine  (*)Anatase  (*)Annite  (*)
Axinite-(Fe)  (*)Baryte  (*)Brookite  (*)Calcite  (*)Cerussite  (*)
Chalcopyrite  (*)Clinozoisite  (*)Copiapite  (*)Diopside  (*)Epidote  (*)
Fluorapatite  (*)Fluorite  (*)Galena  (*)Goethite  (*)Graphite  (*)
Grossular  (*)Harmotome  (*)Hemimorphite  (*)Heulandite-Ca  (*)Hydrozincite  (*)
Ilmenite  (*)Kyanite  (*)Laumontite  (*)Magnetite  (*)Melanterite  (*)
Microcline  (*)Muscovite  (*)Opal  (*)Pyrite  (*)Pyromorphite  (*)
Pyrrhotite  (*)Quartz  (*)Rutile  (*)Schorl  (*)Sillimanite  (*)
Sphalerite  (*)Staurolite  (*)Stilbite-Ca  (*)Titanite  (*)Wulfenite  (*)
Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)211990153419
Albite  (*)FeldsparNa(AlSi3O8)2199014,1990158803
Almandine  (*)GarnetFe2+3Al2(SiO4)311990152353
Anatase  (*)Not in a structural groupTiO211990152162
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)22199014,199015356
Axinite-(Fe)  (*)AxiniteCa4Fe2+2Al4[B2Si8O30](OH)21199015260
Baryte  (*)BaryteBa(SO4)119901511547
Brookite  (*)BrookiteTiO21199015700
Calcite  (*)CalciteCa(CO3)119901527770
Cerussite  (*)AragonitePb(CO3)11990154979
Chalcopyrite  (*)ChalcopyriteCuFeS2119901527198
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)11990151025
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O1199015382
Diopside  (*)PyroxeneCaMgSi2O611990154135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11990158173
Fluorapatite  (*)ApatiteCa5(PO4)3F11990152740
Fluorite  (*)FluoriteCaF211990159617
Galena  (*)RocksaltPbS119901524243
Goethite  (*)DiasporeFeO(OH)11990157437
Graphite  (*)NoneC11990152812
Grossular  (*)GarnetCa3Al2(SiO4)311990151544
Harmotome  (*)HarmotomeBa2(Si12Al4)O32·12H2O1199015290
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O11990151689
Heulandite-Ca  (*)Heulandite(Ca,Na,K)5(Si27Al9)O72·26H2O1199015246
Hydrozincite  (*)NoneZn5(CO3)2(OH)611990151066
Ilmenite  (*)CorundumFe2+Ti4+O311990155433
Kyanite  (*)Not in a structural groupAl2OSiO411990151507
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O11990151271
Magnetite  (*)SpinelFe2+Fe3+2O4119901514899
Melanterite  (*)MelanteriteFe(SO4)·7H2O1199015915
Microcline  (*)FeldsparK(AlSi3O8)2199014,1990154924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22199014,19901517380
Opal  (*)AmorphousSiO2·nH2O11990152994
Pyrite  (*)PyriteFeS2119901539462
Pyromorphite  (*)ApatitePb5(PO4)3Cl11990151725
Pyrrhotite  (*)NickelineFe7S811990159056
Quartz  (*)QuartzSiO22199014,19901561156
Rutile  (*)RutileTiO211990155614
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)11990152705
Sillimanite  (*)Not in a structural groupAl2SiO511990151516
Sphalerite  (*)SphaleriteZnS119901521482
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)1199015978
Stilbite-Ca  (*)StilbiteNaCa4(Si27Al9)O72·28H2O1199015268
Titanite  (*)TitaniteCaTi(SiO4)O11990154899
Wulfenite  (*)ScheelitePbMoO411990151655
Zircon  (*)ZirconZr(SiO4)11990155251


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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