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:
Middlesex Co., Connecticut, USA

Oldest recorded age at locality: 277.9
Youngest recorded age at locality: 227

mindat Locality ID: 15902
mindat URL: http://www.mindat.org/loc-15902.html

Tectonic Settings:

Total number of sublocalities beneath "Middlesex Co., Connecticut, USA": 135
Total number of bottom-level sublocalities: 112

Number of Child Localities: 12
Child Localities:
Chester
Cromwell
Deep River
Durham
East Haddam
East Hampton (Chatham)
Essex
Haddam
Middlefield
Middletown
Old Saybrook
Portland

Latitude: 41°30'33"N
Longitude: 72°34'39"W
Decimal Degree (lat, lon): 41.509166666667,-72.5775
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 Au B Ba Be Bi C Ca Cd Ce Cl Co Cs Cu F Fe H K Li Mg Mn Mo Na Nb Ni O P Pb S Sc Si Sn Ta Th Ti U W Y Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAllaniteAllophaneAmorphousAmphiboleAnalcimeApatiteApophylliteAragoniteArrojadite
ArseniosideriteArsenopyriteArthuriteAutuniteAxiniteBaryteBastnäsiteBerylBismutiteCalcite
Cancrinite-sodaliteChalcopyriteChildreniteChloriteClayClinozoisiteColumbiteCopperCorundumCovellite
DiasporeEpidoteEpsomiteFairfielditeFeldsparFluoriteGadoliniteGarnetGismondineGypsum
HalotrichiteHumiteHureauliteKaoliniteLöllingiteLaueiteMalachiteMarcasiteMelanteriteMelilite
Meta-autuniteMicaMiniumMolybdeniteMonaziteNatroliteNickelineNoneNot in a structural groupOlivine
PhenakitePhosphophyllitePhosphuranylitePrehnitePyritePyrophyllitePyroxeneQuartzRhabdophaneRhodonite
RocksaltRutileScapoliteScheeliteSchoepiteSerpentineSmectite-vermiculiteSodaliteSphaleriteSpinel
Spurrite-AfwilliteStauroliteStibniteStrunziteSulphurTalcTapioliteTitaniteTopazTourmaline
TridymiteTripliteVesuvianiteVivianiteWarditeWollastoniteWurtziteZircon

212 IMA Minerals at location:
Acanthite  (*)Actinolite  (*)Aegirine  (*)Albite  (*)Allanite-(Ce)  (*)
Alleghanyite  (*)Almandine  (*)Analcime  (*)Anatase  (*)Anglesite  (*)
Anhydrite  (*)Annabergite  (*)Annite  (*)Anorthite  (*)Anthophyllite  (*)
Aragonite  (*)Arsenopyrite  (*)Augelite  (*)Augite  (*)Aurichalcite  (*)
Autunite  (*)Axinite-(Fe)  (*)Azurite  (*)Babingtonite  (*)Baryte  (*)
Bastnäsite-(Ce)  (*)Bavenite  (*)Bazzite  (*)Becquerelite  (*)Bertrandite  (*)
Beryl  (*)Birnessite  (*)Bismite  (*)Bismuthinite  (*)Bismutite  (*)
Bismutoferrite  (*)Bismutotantalite  (*)Bityite  (*)Brazilianite  (*)Bustamite  (*)
Calcite  (*)Caryopilite  (*)Cassiterite  (*)Cerussite  (*)Chalcopyrite  (*)
Chrysoberyl  (*)Chrysocolla  (*)Clinozoisite  (*)Columbite-(Fe)  (*)Cookeite  (*)
Cordierite  (*)Covellite  (*)Cronstedtite  (*)Cummingtonite  (*)Cuprobismutite  (*)
Datolite  (*)Diadochite  (*)Dickinsonite-(KMnNa)  (*)Dickite  (*)Diopside  (*)
Dolomite  (*)Dravite  (*)Elbaite  (*)Enstatite  (*)Eosphorite  (*)
Epidote  (*)Epsomite  (*)Erythrite  (*)Fairfieldite  (*)Ferri-ghoseite  (*)
Ferrimolybdite  (*)Ferrisicklerite  (*)Fluorapatite  (*)Fluorapophyllite-(K)  (*)Fluorite  (*)
Foitite  (*)Fourmarierite  (*)Gahnite  (*)Galena  (*)Gedrite  (*)
Gehlenite  (*)Gobbinsite  (*)Goethite  (*)Gold  (*)Gonnardite  (*)
Graphite  (*)Grayite  (*)Greenockite  (*)Grossular  (*)Groutite  (*)
Grunerite  (*)Gypsum  (*)Hastingsite  (*)Hematite  (*)Hemimorphite  (*)
Heterosite  (*)Hureaulite  (*)Hydroxylapatite  (*)Hydroxylherderite  (*)Hydrozincite  (*)
Ilmenite  (*)Ishikawaite  (*)Ixiolite  (*)Jacobsite  (*)Kaersutite  (*)
Kaolinite  (*)Kutnohorite  (*)Kyanite  (*)Lacroixite  (*)Larnite  (*)
Laueite  (*)Laumontite  (*)Liandratite  (*)Litharge  (*)Lithiophilite  (*)
Löllingite  (*)Ludlamite  (*)Maghemite  (*)Magnesio-hornblende  (*)Magnetite  (*)
Malachite  (*)Marcasite  (*)Massicot  (*)Masutomilite  (*)Meionite  (*)
Melanterite  (*)Messelite  (*)Meta-autunite  (*)Metatorbernite  (*)Microcline  (*)
Mimetite  (*)Minium  (*)Mitridatite  (*)Molybdenite  (*)Monazite-(Ce)  (*)
Montebrasite  (*)Montmorillonite  (*)Moraesite  (*)Muscovite  (*)Natrolite  (*)
Natrophilite  (*)Nepheline  (*)Nickeline  (*)Nontronite  (*)Opal  (*)
Orthoclase  (*)Oxy-dravite  (*)Gersdorffite-Pa3  (*)Paragonite  (*)Parsonsite  (*)
Petalite  (*)Phenakite  (*)Phlogopite  (*)Phosphophyllite  (*)Phosphuranylite  (*)
Pickeringite  (*)Piemontite  (*)Plattnerite  (*)Pollucite  (*)Powellite  (*)
Prehnite  (*)Purpurite  (*)Pyrite  (*)Pyrolusite  (*)Pyromorphite  (*)
Pyrophanite  (*)Pyrophyllite  (*)Pyroxmangite  (*)Pyrrhotite  (*)Quartz  (*)
Rhodochrosite  (*)Rhodonite  (*)Rutile  (*)Samarskite-(Y)  (*)Scheelite  (*)
Schorl  (*)Scorodite  (*)Sicklerite  (*)Siderite  (*)Sillimanite  (*)
Sodalite  (*)Spessartine  (*)Sphalerite  (*)Spinel  (*)Spodumene  (*)
Spurrite  (*)Staurolite  (*)Strunzite  (*)Sulphur  (*)Talc  (*)
Tantalite-(Mn)  (*)Tanteuxenite-(Y)  (*)Tapiolite-(Fe)  (*)Tephroite  (*)Thorite  (*)
Titanite  (*)Topaz  (*)Torbernite  (*)Tremolite  (*)Triphylite  (*)
Triplite  (*)Uraninite  (*)Uranophane-α  (*)Vandendriesscheite  (*)Vesuvianite  (*)
Vivianite  (*)Wardite  (*)Whitmoreite  (*)Wodginite  (*)Wollastonite  (*)
Zircon  (*)Zoisite  (*)
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)2277.922714199067,199087,199092,199094,199100,199102,199117,199133,199136,199149,199150,199154,199162,1991653419
Aegirine  (*)PyroxeneNaFe3+Si2O611991141022
Albite  (*)FeldsparNa(AlSi3O8)277.922774199042,199047,199048,199049,199051,199054,199058,199060,199061,199062,199063,199064,199065,199067,199068,199069,199070,199071,199074,199075,199078,199081,199083,199084,199086,199087,199092,199093,199094,199095,199096,199097,199098,199100,199101,199102,199104,199105,199106,199107,199108,199110,199112,199113,199115,199116,199117,199121,199122,199127,199128,199131,199134,199144,199145,199149,199151,199152,199153,199154,199157,199159,199160,199163,199165,199166,199168,199169,199170,199171,199172,199173,199175,1991768803
Allanite-(Ce)  (*)Allanite EpidoteCaCe(Al2Fe2+)[Si2O7][SiO4]O(OH)2742722199058,199100706
Alleghanyite  (*)HumiteMn2+5(SiO4)2(OH)2119911777
Almandine  (*)GarnetFe2+3Al2(SiO4)3277.922749199042,199047,199048,199049,199058,199059,199060,199061,199065,199067,199069,199070,199074,199075,199077,199078,199080,199081,199083,199084,199085,199087,199091,199092,199094,199096,199100,199102,199105,199106,199110,199112,199118,199120,199145,199149,199151,199153,199154,199159,199160,199163,199165,199166,199168,199171,199172,199173,1991762353
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O2352273199050,199140,1991661627
Anatase  (*)Not in a structural groupTiO223522711991662162
Anglesite  (*)BarytePb(SO4)277.9277.911991472734
Anhydrite  (*)Not in a structural groupCa(SO4)11990501588
Annabergite  (*)VivianiteNi3(AsO4)2·8H2O2742721199067445
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)2277.922737199042,199061,199064,199068,199069,199071,199074,199078,199081,199083,199084,199097,199098,199101,199102,199106,199110,199112,199113,199115,199122,199127,199136,199145,199149,199151,199154,199157,199160,199163,199165,199166,199169,199171,199173,199174,199176356
Anorthite  (*)FeldsparCa(Al2Si2O8)2742274199058,199067,199133,1991661036
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)27199042,199090,199094,199099,199108,199129,199134718
Aragonite  (*)AragoniteCa(CO3)2352276199048,199050,199090,199133,199165,1991663250
Arsenopyrite  (*)ArsenopyriteFeAsS277.92279199067,199069,199086,199147,199148,199154,199157,199166,1991719052
Augelite  (*)NoneAl2(PO4)(OH)3235227119916679
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O62742274199050,199058,199140,1991662060
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)6277.9277.91199147919
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O277.922717199048,199069,199081,199083,199093,199106,199117,199143,199149,199154,199157,199160,199166,199169,199171,199173,1991761272
Axinite-(Fe)  (*)AxiniteCa4Fe2+2Al4[B2Si8O30](OH)21199131260
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)211991315509
Babingtonite  (*)RhodoniteCa2Fe2+Fe3+Si5O14(OH)3199048,199050,199094161
Baryte  (*)BaryteBa(SO4)119911711547
Bastnäsite-(Ce)  (*)BastnäsiteCe(CO3)F2742721199058304
Bavenite  (*)NoneCa4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1)2742274199083,199094,199110,199166255
Bazzite  (*)BerylBe3(Sc,Fe3+,Mg)2Si6O18·Na0.32·nH2O235227119916651
Becquerelite  (*)NoneCa(UO2)6O4(OH)6·8H2O119910692
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)2277.922714199060,199069,199083,199087,199094,199100,199105,199110,199121,199149,199154,199165,199166,199173606
Beryl  (*)BerylBe3Al2Si6O18277.922759199048,199049,199051,199054,199058,199060,199063,199064,199065,199069,199070,199072,199075,199076,199078,199081,199083,199084,199086,199087,199092,199093,199094,199095,199096,199097,199098,199100,199102,199105,199106,199110,199116,199118,199119,199121,199122,199124,199127,199144,199149,199151,199152,199153,199154,199157,199159,199160,199163,199165,199166,199168,199169,199171,199172,199173,199174,199175,1991764286
Birnessite  (*)None(Na,Ca,K)0.6(Mn4+,Mn3+)2O4·1.5H2O1199117178
Bismite  (*)NoneBi2O32742722199083,199160214
Bismuthinite  (*)StibniteBi2S3277.92729199083,199094,199095,199106,199110,199121,199154,199160,1991731935
Bismutite  (*)BismutiteBi2O2(CO3)2742728199081,199083,199095,199106,199110,199160,199172,199173716
Bismutoferrite  (*)KaoliniteFe3+2Bi(SiO4)2(OH)119916051
Bismutotantalite  (*)NoneBiTaO4119911023
Bityite  (*)Mica ClayCaLiAl2(Si2BeAl)O10(OH)2235227119916631
Brazilianite  (*)Not in a structural groupNaAl3(PO4)2(OH)4235227119916659
Bustamite  (*)WollastoniteMn2Ca2MnCa(Si3O9)21199117101
Calcite  (*)CalciteCa(CO3)277.922713199050,199102,199109,199114,199117,199131,199139,199140,199147,199149,199162,199165,19916627770
Caryopilite  (*)Clay SerpentineMn2+3Si2O5(OH)4119911783
Cassiterite  (*)RutileSnO22742274199060,199102,199166,1991765171
Cerussite  (*)AragonitePb(CO3)277.9277.92199143,1991474979
Chalcopyrite  (*)ChalcopyriteCuFeS2277.922720199050,199058,199067,199069,199092,199098,199102,199106,199114,199122,199127,199131,199132,199147,199148,199149,199154,199160,199166,19917127198
Chrysoberyl  (*)OlivineBeAl2O42199095,199116321
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O277.9277.911991473531
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)23522711991661025
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O6277.922719199069,199081,199083,199084,199095,199096,199102,199106,199118,199149,199151,199154,199157,199159,199160,199166,199171,199174,199176518
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)8277.92276199102,199105,199110,199151,199154,199166181
Cordierite  (*)BerylMg2Al4Si5O182352277199094,199095,199108,199134,199160,199165,1991661008
Covellite  (*)CovelliteCuS27427211990864165
Cronstedtite  (*)Clay Serpentine(Fe2+,Fe3+)3(Si,Fe3+)2O5(OH)4119913154
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)22742722199080,199090327
Cuprobismutite  (*)NoneCu8AgBi13S24119916043
Datolite  (*)GadoliniteCaB(SiO4)(OH)1199050498
Diadochite  (*)AmorphousFe3+2(PO4)(SO4)(OH)·6H2O274272119906981
Dickinsonite-(KMnNa)  (*)ArrojaditeK(NaMn)CaNa3AlMn13(PO4)12(OH)2235227119916626
Dickite  (*)Clay KaoliniteAl2Si2O5(OH)41199114651
Diopside  (*)PyroxeneCaMgSi2O6277.92278199102,199131,199149,199150,199154,199162,199165,1991664135
Dolomite  (*)NoneCaMg(CO3)22199102,1991099895
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)2742722199086,199094648
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)277.922710199060,199071,199102,199105,199110,199151,199154,199165,199166,199176520
Enstatite  (*)PyroxeneMg2Si2O61199136944
Eosphorite  (*)ChildreniteMn2+Al(PO4)(OH)2·H2O2352271199166128
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)16199047,199050,199092,199098,199100,199109,199114,199122,199127,199131,199133,199155,199158,199160,199162,1991638173
Epsomite  (*)EpsomiteMg(SO4)·7H2O2352271199166484
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O2742721199067814
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O235227119916672
Ferri-ghoseite  (*)Amphibole   (NaMn2+)(Mg4Fe3+)Si8O22(OH)2119911714
Ferrimolybdite  (*)NoneFe3+2(Mo6+O4)3·7H2O2199157,199171345
Ferrisicklerite  (*)OlivineLi1-x(Fe3+,Mn2+)(PO4)2742721199069108
Fluorapatite  (*)ApatiteCa5(PO4)3F277.922738199048,199049,199051,199058,199060,199061,199064,199069,199070,199074,199078,199081,199083,199096,199098,199102,199105,199106,199110,199114,199117,199122,199127,199149,199151,199153,199154,199157,199159,199160,199163,199165,199166,199168,199169,199171,199173,1991762740
Fluorapophyllite-(K)  (*)ApophylliteKCa4Si8O20F·8H2O1199050303
Fluorite  (*)FluoriteCaF2277.922714199050,199058,199083,199094,199102,199110,199117,199147,199149,199151,199154,199165,199166,1991699617
Foitite  (*)Tourmaline   (Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)235227119916675
Fourmarierite  (*)SchoepitePb1-xO3-2x(UO2)4(OH)4+2x·4H2O119910661
Gahnite  (*)SpinelZnAl2O42742725199067,199095,199134,199172,199173445
Galena  (*)RocksaltPbS277.92275199067,199069,199147,199148,19916624243
Gedrite  (*)Amphibole   Mg2(Mg3Al2)(Si6Al2)O22(OH)22199042,199047178
Gehlenite  (*)MeliliteCa2Al(SiAl)O72352271199166114
Gobbinsite  (*)GismondineNa5(Si11Al5)O32·11H2O235227119916617
Goethite  (*)DiasporeFeO(OH)277.922712199057,199067,199069,199081,199084,199102,199106,199117,199132,199151,199160,1991667437
Gold  (*)CopperAu274272119906730554
Gonnardite  (*)Natrolite(Na,Ca)2(Si,Al)5O10·3H2O1199100167
Graphite  (*)NoneC2742276199057,199064,199099,199102,199103,1991662812
Grayite  (*)Rhabdophane(Th,Pb,Ca)(PO4)·H2O274242.3119906017
Greenockite  (*)WurtziteCdS277.9277.91199147717
Grossular  (*)GarnetCa3Al2(SiO4)3277.92277199067,199109,199150,199154,199162,199165,1991661544
Groutite  (*)DiasporeMn3+O(OH)235227119916672
Grunerite  (*)Amphibole   Fe2+2Fe2+5Si8O22(OH)21199131223
Gypsum  (*)GypsumCa(SO4)·2H2O2742275199050,199058,199102,199166,1991766890
Hastingsite  (*)AmphiboleNaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)21199114209
Hematite  (*)CorundumFe2O32742275199050,199084,199102,199112,19916614640
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O277.9277.911991471689
Heterosite  (*)OlivineFe3+(PO4)2742722199069,199157204
Hureaulite  (*)HureauliteMn2+5(PO3OH)2(PO4)2·4H2O2352271199166125
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH2742272199069,199166367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)2742272199069,199166119
Hydrozincite  (*)NoneZn5(CO3)2(OH)6277.9277.911991471066
Ilmenite  (*)CorundumFe2+Ti4+O3277.9277.96199092,199134,199136,199150,199154,1991625433
Ishikawaite  (*)Columbite(U,Fe,Y)NbO4119917424
Ixiolite  (*)Columbite(Ta2/3Mn2+1/3)O2274242.32199060,199083148
Jacobsite  (*)SpinelMn2+Fe3+2O41199117172
Kaersutite  (*)AmphiboleNaCa2(Mg3AlTi4+)(Si6Al2)O22O21199140179
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4277.92277199057,199058,199067,199076,199083,199154,1991665591
Kutnohorite  (*)NoneCaMn2+(CO3)21199117234
Kyanite  (*)Not in a structural groupAl2OSiO4277.922711199048,199079,199087,199099,199103,199129,199146,199150,199154,199166,1991671507
Lacroixite  (*)TitaniteNaAl(PO4)F235227119916622
Larnite  (*)Not in a structural groupCa2(SiO4)235227119916648
Laueite  (*)LaueiteMn2+Fe3+2(PO4)2(OH)2·8H2O274272119906970
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O2199050,1990941271
Liandratite  (*)NoneU6+Nb2O8119916021
Litharge  (*)NonePbO277.9277.91199147139
Lithiophilite  (*)OlivineLiMn2+(PO4)2352272199165,199166155
Löllingite  (*)LöllingiteFeAs22742273199067,199081,199166762
Ludlamite  (*)NoneFe2+3(PO4)2·4H2O274272119906966
Maghemite  (*)Spinel(Fe3+0.67   0.33)Fe3+2O41199110229
Magnesio-hornblende  (*)Amphibole   Ca2(Mg4Al)(Si7Al)O22(OH)22742272199055,199166238
Magnetite  (*)SpinelFe2+Fe3+2O423522722199042,199047,199048,199051,199092,199094,199102,199107,199108,199110,199112,199113,199114,199115,199125,199134,199136,199140,199163,199166,199173,19917414899
Malachite  (*)MalachiteCu2(CO3)(OH)2277.92724199069,199131,199147,19915712537
Marcasite  (*)MarcasiteFeS2277.92725199086,199092,199096,199131,1991475674
Massicot  (*)NonePbO277.9277.91199147202
Masutomilite  (*)MicaKLiAlMn2+(Si3Al)O10(F,OH)2235227119916612
Meionite  (*)ScapoliteCa4Al6Si6O24(CO3)1199109176
Melanterite  (*)MelanteriteFe(SO4)·7H2O2742277199058,199067,199069,199131,199132,199166,199171915
Messelite  (*)FairfielditeCa2Fe2+(PO4)2·2H2O274272119906943
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O277.922717199051,199078,199081,199087,199094,199097,199100,199106,199110,199134,199151,199154,199160,199163,199166,199171,199176388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O2742727199081,199087,199094,199110,199160,199163,199171443
Microcline  (*)FeldsparK(AlSi3O8)277.922772199047,199049,199054,199058,199060,199061,199062,199063,199064,199065,199067,199068,199069,199070,199071,199074,199075,199078,199081,199083,199084,199086,199087,199092,199093,199096,199097,199098,199100,199101,199102,199104,199105,199106,199107,199108,199110,199112,199113,199115,199116,199117,199118,199119,199121,199122,199124,199127,199128,199135,199144,199145,199149,199151,199152,199153,199154,199157,199159,199160,199163,199165,199166,199168,199169,199170,199171,199172,199173,199174,199175,1991764924
Mimetite  (*)ApatitePb5(AsO4)3Cl277.9277.911991471107
Minium  (*)MiniumPb2+2Pb4+O4277.9277.91199147247
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O2742272199060,199166129
Molybdenite  (*)MolybdeniteMoS2277.922716199052,199089,199092,199094,199098,199105,199116,199121,199122,199127,199130,199153,199157,199162,199166,1991715800
Monazite-(Ce)  (*)MonaziteCe(PO4)2742279199042,199060,199078,199081,199094,199118,199157,199160,199166945
Montebrasite  (*)NoneLiAl(PO4)(OH)2352273199165,199166,199176200
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O2352273199166,199171,1991761508
Moraesite  (*)NoneBe2(PO4)(OH)·4H2O235227119916635
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2277.922771199047,199048,199049,199051,199054,199058,199060,199061,199062,199064,199065,199067,199069,199070,199071,199072,199074,199075,199076,199077,199078,199081,199083,199084,199086,199087,199092,199093,199094,199096,199097,199098,199100,199101,199102,199104,199105,199106,199107,199110,199112,199113,199115,199117,199118,199121,199122,199127,199128,199131,199144,199145,199149,199151,199152,199153,199154,199157,199159,199160,199163,199165,199166,199168,199169,199170,199171,199173,199174,199175,19917617380
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O3199100,199114,1991421236
Natrophilite  (*)OlivineNaMn2+(PO4)23522711991665
Nepheline  (*)TridymiteNa3K(Al4Si4O16)1199114884
Nickeline  (*)NickelineNiAs2742721199067633
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O1199114471
Opal  (*)AmorphousSiO2·nH2O277.922721199048,199051,199067,199081,199083,199087,199106,199110,199112,199113,199117,199118,199151,199154,199160,199163,199166,199169,199171,199173,1991762994
Orthoclase  (*)FeldsparK(AlSi3O8)11991022349
Oxy-dravite  (*)TourmalineNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O119909024
Gersdorffite-Pa3  (*)PyriteNiAsS2742721199067767
Paragonite  (*)Mica ClayNaAl2(Si3Al)O10(OH)21199131247
Parsonsite  (*)NonePb2(UO2)(PO4)2235227119916663
Petalite  (*)Not in a structural groupLiAlSi4O102352271199166124
Phenakite  (*)PhenakiteBe2(SiO4)2352271199166326
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)22199110,1991312273
Phosphophyllite  (*)PhosphophylliteZn2Fe2+(PO4)2·4H2O274272119906929
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O2199106,199160182
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O2742275199058,199067,199069,199165,199166265
Piemontite  (*)EpidoteCa2(Al2Mn3+)[Si2O7][SiO4]O(OH)1199109260
Plattnerite  (*)RutilePbO2277.9277.91199147158
Pollucite  (*)AnalcimeCs(Si2Al)O6·nH2O2352273199110,199166,199176140
Powellite  (*)ScheeliteCa(MoO4)1199094494
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)2277.9277.98199048,199050,199094,199100,199137,199142,199150,1991541898
Purpurite  (*)OlivineMn3+(PO4)235227119916680
Pyrite  (*)PyriteFeS2277.922731199050,199057,199058,199060,199067,199069,199070,199083,199087,199092,199094,199098,199100,199106,199114,199117,199122,199127,199131,199132,199147,199149,199153,199154,199160,199163,199165,199166,199168,199169,19917139462
Pyrolusite  (*)RutileMnO2277.9277.911991503106
Pyromorphite  (*)ApatitePb5(PO4)3Cl277.9277.911991471725
Pyrophanite  (*)CorundumMn2+TiO31199117244
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)21199131771
Pyroxmangite  (*)NoneMn2+SiO31199117147
Pyrrhotite  (*)NickelineFe7S8277.922711199058,199067,199069,199087,199092,199094,199102,199132,199149,199166,1991719056
Quartz  (*)QuartzSiO2277.922790199042,199043,199047,199049,199050,199051,199052,199054,199057,199058,199060,199061,199062,199063,199064,199065,199067,199068,199069,199070,199071,199074,199075,199078,199079,199081,199083,199084,199086,199087,199089,199090,199093,199094,199095,199096,199097,199098,199100,199101,199102,199104,199105,199106,199107,199108,199110,199112,199113,199114,199115,199116,199117,199118,199121,199122,199123,199127,199128,199131,199133,199134,199135,199144,199145,199146,199147,199148,199149,199151,199152,199153,199154,199157,199158,199159,199160,199162,199163,199165,199166,199168,199169,199170,199171,199172,199173,199174,199175,19917661156
Rhodochrosite  (*)CalciteMn(CO3)2352272199165,1991661711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)277.9277.92199117,199150969
Rutile  (*)RutileTiO22742275199042,199083,199094,199117,1991665614
Samarskite-(Y)  (*)ColumbiteYFe3+Nb2O8277.9277.94199154,199160,199163,199173353
Scheelite  (*)ScheeliteCa(WO4)277.92278199058,199077,199083,199087,199102,199149,199154,1991664894
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)277.922755199047,199048,199049,199054,199060,199061,199064,199068,199069,199070,199071,199074,199075,199077,199078,199081,199083,199084,199091,199094,199095,199096,199097,199098,199100,199101,199102,199104,199105,199106,199110,199116,199120,199121,199124,199131,199134,199135,199149,199151,199152,199154,199157,199159,199160,199163,199165,199166,199167,199169,199170,199171,199172,199173,1991762705
Scorodite  (*)NoneFe3+(AsO4)·2H2O27427211990671153
Sicklerite  (*)OlivineLiMn2+(PO4)235227119916666
Siderite  (*)CalciteFe(CO3)2742273199069,199131,1991666417
Sillimanite  (*)Not in a structural groupAl2SiO527427210199042,199043,199052,199058,199091,199092,199100,199110,199131,1991671516
Sodalite  (*)Cancrinite-sodalite SodaliteNa4(Si3Al3)O12Cl1199114444
Spessartine  (*)GarnetMn2+3Al2(SiO4)3277.92279199060,199081,199095,199110,199117,199143,199166,199173,1991761214
Sphalerite  (*)SphaleriteZnS277.922711199058,199067,199069,199102,199147,199148,199149,199154,199157,199165,19916621482
Spinel  (*)SpinelMgAl2O411991361934
Spodumene  (*)PyroxeneLiAlSi2O6277.92274199154,199165,199166,199176688
Spurrite  (*)Spurrite-AfwilliteCa5(SiO4)2(CO3)235227119916654
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)2742275199067,199080,199081,199166,199167978
Strunzite  (*)StrunziteMn2+Fe3+2(PO4)2(OH)2·6H2O274272119906998
Sulphur  (*)SulphurS2742273199082,199166,1991762045
Talc  (*)Clay TalcMg3Si4O10(OH)22199095,1991363337
Tantalite-(Mn)  (*)ColumbiteMn2+Ta2O62742274199060,199110,199166,199176211
Tanteuxenite-(Y)  (*)ColumbiteY(TaTi)O6274272119908316
Tapiolite-(Fe)  (*)TapioliteFe2+Ta2O6274272119908188
Tephroite  (*)OlivineMn2+2(SiO4)1199117240
Thorite  (*)ZirconTh(SiO4)11991001006
Titanite  (*)TitaniteCaTi(SiO4)O27422715199052,199058,199083,199092,199098,199100,199102,199109,199117,199122,199127,199131,199158,199162,1991664899
Topaz  (*)TopazAl2SiO4F2277.92275199102,199121,199154,199166,1991761476
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O277.927210199081,199084,199093,199106,199149,199154,199157,199160,199171,1991731059
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)223522711991662562
Triphylite  (*)OlivineLiFe2+(PO4)2742723199069,199106,199157313
Triplite  (*)TripliteMn2+2(PO4)F2742272199060,199166233
Uraninite  (*)FluoriteUO2277.922726199048,199051,199081,199083,199084,199086,199087,199094,199096,199097,199106,199110,199117,199118,199143,199149,199151,199154,199157,199159,199160,199165,199166,199171,199173,1991762718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O277.922714199051,199081,199087,199102,199106,199118,199149,199154,199157,199160,199166,199171,199173,199176890
Vandendriesscheite  (*)NonePb1.6(UO2)10O6(OH)11·11H2O119910652
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10277.9277.94199102,199109,199150,1991541395
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O2742721199069636
Wardite  (*)WarditeNaAl3(PO4)2(OH)4·2H2O235227119916658
Whitmoreite  (*)ArthuriteFe2+Fe3+2(PO4)2(OH)2·4H2O274272119906936
Wodginite  (*)ColumbiteMn2+Sn4+Ta2O82352272199166,19917678
Wollastonite  (*)WollastoniteCaSiO323522711991661247
Zircon  (*)ZirconZr(SiO4)277.922719199060,199069,199081,199083,199086,199093,199095,199106,199110,199118,199143,199149,199151,199154,199157,199160,199166,199173,1991765251
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)2352274199100,199133,199165,1991661025


5 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
Alexandra-0185273.63273.03273.23 ±.0.3U-PbAge of pegmatitezircon10AMC3  Zircon  6782Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USAAndersonBradley et al. (2016)10.3749/canmin.1600035CM54_945 
Alexandra-0186244.1242.3243.2 ± 0.9Ar-ArAge of pegmatitemuscovite10AMC3  Muscovite  6782Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USAAndersonBradley et al. (2016)10.3749/canmin.1600035CM54_945 
Bradley_2012_069274272273±1U/Pb zircon   Zircon  6782Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USAAndersonMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 
Mo-00159277.9277.9277.9U-Pb monazite   MolybdeniteMo17878Middletown, Middlesex Co., Connecticut, USAMiddletownFenner (1932)10.2475/ajs.s5-23.136.327AJS5_327 
Alexandra-0276235227231±4Rb-SrAge of pegmatite      217860Strickland Pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USAStrickland pegmatiteBrookins et al. (1969)10.1007/BF00372402CMP22_157 

SampleSource LocalityReference URL

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