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:
Middletown, Middlesex Co., Connecticut, USA

Oldest recorded age at locality: 277.9
Youngest recorded age at locality: 277.9

mindat Locality ID: 17878
mindat URL: http://www.mindat.org/loc-17878.html

Tectonic Settings:

Total number of sublocalities beneath "Middletown, Middlesex Co., Connecticut, USA": 11
Total number of bottom-level sublocalities: 10

Number of Child Localities: 7
Child Localities:
Brooks Road
Dripps Road
Kyanite Locality
Middletown Lead Mines (Middletown Mine)
State Farm Quarry (Road Metal Quarry)
Tollgate Quarry (Tollgate Mine; Bidwell Quarry; China-stone Quarry)
White Rock District (White Rocks District)

Latitude: 41°32'37"N
Longitude: 72°36'20"W
Decimal Degree (lat, lon): 41.543611111111,-72.605555555556
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: Ag Al As B Be Bi C Ca Cd Cl Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb S Si Ti U W Y Zn Zr 

Elements from minerals reported directly at this locality: Al Mn O Si 

Structural Groups for minerals in this locality: 
AcanthiteAllophaneAmorphousAmphiboleApatiteAragoniteArsenopyriteAutuniteBaryteBeryl
CalciteChalcopyriteChloriteClayColumbiteCorundumDiasporeFeldsparFluoriteGarnet
KaoliniteMalachiteMarcasiteMeta-autuniteMicaMiniumMolybdeniteNickelineNoneNot in a structural group
PrehnitePyritePyroxeneQuartzRhodoniteRocksaltRutileScheeliteSphaleriteStibnite
TopazTourmalineVesuvianiteWurtziteZircon

62 IMA Minerals at location:
Acanthite  (*)Actinolite  (*)Albite  (*)Almandine  (*)Anglesite  (*)
Annite  (*)Arsenopyrite  (*)Aurichalcite  (*)Autunite  (*)Bertrandite  (*)
Beryl  (*)Bismuthinite  (*)Calcite  (*)Cerussite  (*)Chalcopyrite  (*)
Chrysocolla  (*)Columbite-(Fe)  (*)Cookeite  (*)Diopside  (*)Elbaite  (*)
Fluorapatite  (*)Fluorite  (*)Galena  (*)Goethite  (*)Greenockite  (*)
Grossular  (*)Hemimorphite  (*)Hydrozincite  (*)Ilmenite  (*)Kaolinite  (*)
Kyanite  (*)Litharge  (*)Malachite  (*)Marcasite  (*)Massicot  (*)
Meta-autunite  (*)Microcline  (*)Mimetite  (*)Minium  (*)Molybdenite  (*)
Muscovite  (*)Opal  (*)Plattnerite  (*)Prehnite  (*)Pyrite  (*)
Pyrolusite  (*)Pyromorphite  (*)Pyrrhotite  (*)Quartz  (*)Rhodonite  (*)
Samarskite-(Y)  (*)Scheelite  (*)Schorl  (*)Spessartine  (*)Sphalerite  (*)
Spodumene  (*)Topaz  (*)Torbernite  (*)Uraninite  (*)Uranophane-α  (*)
Vesuvianite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S277.9277.911991472793
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2277.9277.93199149,199150,1991543419
Albite  (*)FeldsparNa(AlSi3O8)277.9277.97199144,199145,199149,199151,199152,199153,1991548803
Almandine  (*)GarnetFe2+3Al2(SiO4)3277.9277.95199145,199149,199151,199153,1991542353
Anglesite  (*)BarytePb(SO4)277.9277.911991472734
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)2277.9277.94199145,199149,199151,199154356
Arsenopyrite  (*)ArsenopyriteFeAsS277.9277.93199147,199148,1991549052
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)6277.9277.91199147919
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O277.9277.92199149,1991541272
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)2277.9277.92199149,199154606
Beryl  (*)BerylBe3Al2Si6O18277.9277.96199144,199149,199151,199152,199153,1991544286
Bismuthinite  (*)StibniteBi2S3277.9277.911991541935
Calcite  (*)CalciteCa(CO3)277.9277.92199147,19914927770
Cerussite  (*)AragonitePb(CO3)277.9277.911991474979
Chalcopyrite  (*)ChalcopyriteCuFeS2277.9277.94199147,199148,199149,19915427198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O277.9277.911991473531
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O6277.9277.93199149,199151,199154518
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)8277.9277.92199151,199154181
Diopside  (*)PyroxeneCaMgSi2O6277.9277.93199149,199150,1991544135
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)277.9277.92199151,199154520
Fluorapatite  (*)ApatiteCa5(PO4)3F277.9277.94199149,199151,199153,1991542740
Fluorite  (*)FluoriteCaF2277.9277.94199147,199149,199151,1991549617
Galena  (*)RocksaltPbS277.9277.92199147,19914824243
Goethite  (*)DiasporeFeO(OH)277.9277.911991517437
Greenockite  (*)WurtziteCdS277.9277.91199147717
Grossular  (*)GarnetCa3Al2(SiO4)3277.9277.92199150,1991541544
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O277.9277.911991471689
Hydrozincite  (*)NoneZn5(CO3)2(OH)6277.9277.911991471066
Ilmenite  (*)CorundumFe2+Ti4+O3277.9277.92199150,1991545433
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4277.9277.911991545591
Kyanite  (*)Not in a structural groupAl2OSiO4277.9277.93199146,199150,1991541507
Litharge  (*)NonePbO277.9277.91199147139
Malachite  (*)MalachiteCu2(CO3)(OH)2277.9277.9119914712537
Marcasite  (*)MarcasiteFeS2277.9277.911991475674
Massicot  (*)NonePbO277.9277.91199147202
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O277.9277.92199151,199154388
Microcline  (*)FeldsparK(AlSi3O8)277.9277.97199144,199145,199149,199151,199152,199153,1991544924
Mimetite  (*)ApatitePb5(AsO4)3Cl277.9277.911991471107
Minium  (*)MiniumPb2+2Pb4+O4277.9277.91199147247
Molybdenite  (*)MolybdeniteMoS2277.9277.911991535800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2277.9277.97199144,199145,199149,199151,199152,199153,19915417380
Opal  (*)AmorphousSiO2·nH2O277.9277.92199151,1991542994
Plattnerite  (*)RutilePbO2277.9277.91199147158
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)2277.9277.92199150,1991541898
Pyrite  (*)PyriteFeS2277.9277.94199147,199149,199153,19915439462
Pyrolusite  (*)RutileMnO2277.9277.911991503106
Pyromorphite  (*)ApatitePb5(PO4)3Cl277.9277.911991471725
Pyrrhotite  (*)NickelineFe7S8277.9277.911991499056
Quartz  (*)QuartzSiO2277.9277.910199144,199145,199146,199147,199148,199149,199151,199152,199153,19915461156
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)277.9277.91199150969
Samarskite-(Y)  (*)ColumbiteYFe3+Nb2O8277.9277.91199154353
Scheelite  (*)ScheeliteCa(WO4)277.9277.92199149,1991544894
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)277.9277.94199149,199151,199152,1991542705
Spessartine  (*)GarnetMn2+3Al2(SiO4)3277.9277.901214
Sphalerite  (*)SphaleriteZnS277.9277.94199147,199148,199149,19915421482
Spodumene  (*)PyroxeneLiAlSi2O6277.9277.91199154688
Topaz  (*)TopazAl2SiO4F2277.9277.911991541476
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O277.9277.92199149,1991541059
Uraninite  (*)FluoriteUO2277.9277.93199149,199151,1991542718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O277.9277.92199149,199154890
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10277.9277.92199150,1991541395
Zircon  (*)ZirconZr(SiO4)277.9277.93199149,199151,1991545251


1 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Mo-00159277.9277.9277.9U-Pb monazite   MolybdeniteMo17878Middletown, Middlesex Co., Connecticut, USAMiddletownFenner (1932)10.2475/ajs.s5-23.136.327AJS5_327 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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