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:
Strickland Pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA

Oldest recorded age at locality: 235
Youngest recorded age at locality: 227

mindat Locality ID: 217860
mindat URL: http://www.mindat.org/loc-217860.html

Tectonic Settings:

Total number of sublocalities beneath "Strickland Pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Schoonmaker Mine (Cramer Mine)
Strickland Quarry (Eureka Quarry)

Latitude: 41°35'32"N
Longitude: 72°35'30"W
Decimal Degree (lat, lon): 41.592222222222,-72.591666666667
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 As B Be C Ca Ce Cs Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb S Sc Si Sn Ta Ti U W Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleAnalcimeApatiteAragoniteArrojaditeArseniosideriteArsenopyriteAutuniteBeryl
CalciteChalcopyriteChildreniteChloriteClayClinozoisiteColumbiteCorundumDiasporeEpidote
EpsomiteFairfielditeFeldsparFluoriteGadoliniteGarnetGismondineGypsumHalotrichiteHureaulite
KaoliniteLöllingiteMelanteriteMeliliteMeta-autuniteMicaMolybdeniteMonaziteNickelineNone
Not in a structural groupOlivinePhenakitePyritePyroxeneQuartzRocksaltRutileScheeliteSmectite-vermiculite
SphaleriteSpinelSpurrite-AfwilliteStauroliteSulphurTitaniteTopazTourmalineTripliteWardite
WollastoniteZircon

100 IMA Minerals at location:
Actinolite  (*)Albite  (*)Almandine  (*)Analcime  (*)Anatase  (*)
Annite  (*)Anorthite  (*)Aragonite  (*)Arsenopyrite  (*)Augelite  (*)
Augite  (*)Autunite  (*)Bavenite  (*)Bazzite  (*)Bertrandite  (*)
Beryl  (*)Bityite  (*)Brazilianite  (*)Calcite  (*)Cassiterite  (*)
Chalcopyrite  (*)Clinozoisite  (*)Columbite-(Fe)  (*)Cookeite  (*)Cordierite  (*)
Dickinsonite-(KMnNa)  (*)Diopside  (*)Elbaite  (*)Eosphorite  (*)Epsomite  (*)
Fairfieldite  (*)Fluorapatite  (*)Fluorite  (*)Foitite  (*)Galena  (*)
Gehlenite  (*)Gobbinsite  (*)Goethite  (*)Graphite  (*)Grossular  (*)
Groutite  (*)Gypsum  (*)Hematite  (*)Hureaulite  (*)Hydroxylapatite  (*)
Hydroxylherderite  (*)Kaolinite  (*)Kyanite  (*)Lacroixite  (*)Larnite  (*)
Lithiophilite  (*)Löllingite  (*)Magnesio-hornblende  (*)Magnetite  (*)Masutomilite  (*)
Melanterite  (*)Meta-autunite  (*)Microcline  (*)Mitridatite  (*)Molybdenite  (*)
Monazite-(Ce)  (*)Montebrasite  (*)Montmorillonite  (*)Moraesite  (*)Muscovite  (*)
Natrophilite  (*)Opal  (*)Parsonsite  (*)Petalite  (*)Phenakite  (*)
Pickeringite  (*)Pollucite  (*)Purpurite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Rhodochrosite  (*)Rutile  (*)Scheelite  (*)Schorl  (*)
Sicklerite  (*)Siderite  (*)Spessartine  (*)Sphalerite  (*)Spodumene  (*)
Spurrite  (*)Staurolite  (*)Sulphur  (*)Tantalite-(Mn)  (*)Titanite  (*)
Topaz  (*)Tremolite  (*)Triplite  (*)Uraninite  (*)Uranophane-α  (*)
Wardite  (*)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
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)223522711991653419
Albite  (*)FeldsparNa(AlSi3O8)2352272199165,1991668803
Almandine  (*)GarnetFe2+3Al2(SiO4)32352272199165,1991662353
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O23522711991661627
Anatase  (*)Not in a structural groupTiO223522711991662162
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)22352272199165,199166356
Anorthite  (*)FeldsparCa(Al2Si2O8)23522711991661036
Aragonite  (*)AragoniteCa(CO3)2352272199165,1991663250
Arsenopyrite  (*)ArsenopyriteFeAsS23522711991669052
Augelite  (*)NoneAl2(PO4)(OH)3235227119916679
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O623522711991662060
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O23522711991661272
Bavenite  (*)NoneCa4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1)2352271199166255
Bazzite  (*)BerylBe3(Sc,Fe3+,Mg)2Si6O18·Na0.32·nH2O235227119916651
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)22352272199165,199166606
Beryl  (*)BerylBe3Al2Si6O182352272199165,1991664286
Bityite  (*)Mica ClayCaLiAl2(Si2BeAl)O10(OH)2235227119916631
Brazilianite  (*)Not in a structural groupNaAl3(PO4)2(OH)4235227119916659
Calcite  (*)CalciteCa(CO3)2352272199165,19916627770
Cassiterite  (*)RutileSnO223522711991665171
Chalcopyrite  (*)ChalcopyriteCuFeS2235227119916627198
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)23522711991661025
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O62352271199166518
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)82352271199166181
Cordierite  (*)BerylMg2Al4Si5O182352272199165,1991661008
Dickinsonite-(KMnNa)  (*)ArrojaditeK(NaMn)CaNa3AlMn13(PO4)12(OH)2235227119916626
Diopside  (*)PyroxeneCaMgSi2O62352272199165,1991664135
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)2352272199165,199166520
Eosphorite  (*)ChildreniteMn2+Al(PO4)(OH)2·H2O2352271199166128
Epsomite  (*)EpsomiteMg(SO4)·7H2O2352271199166484
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O235227119916672
Fluorapatite  (*)ApatiteCa5(PO4)3F2352272199165,1991662740
Fluorite  (*)FluoriteCaF22352272199165,1991669617
Foitite  (*)Tourmaline   (Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)235227119916675
Galena  (*)RocksaltPbS235227119916624243
Gehlenite  (*)MeliliteCa2Al(SiAl)O72352271199166114
Gobbinsite  (*)GismondineNa5(Si11Al5)O32·11H2O235227119916617
Goethite  (*)DiasporeFeO(OH)23522711991667437
Graphite  (*)NoneC23522711991662812
Grossular  (*)GarnetCa3Al2(SiO4)32352272199165,1991661544
Groutite  (*)DiasporeMn3+O(OH)235227119916672
Gypsum  (*)GypsumCa(SO4)·2H2O23522711991666890
Hematite  (*)CorundumFe2O3235227119916614640
Hureaulite  (*)HureauliteMn2+5(PO3OH)2(PO4)2·4H2O2352271199166125
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH2352271199166367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)2352271199166119
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)423522711991665591
Kyanite  (*)Not in a structural groupAl2OSiO423522711991661507
Lacroixite  (*)TitaniteNaAl(PO4)F235227119916622
Larnite  (*)Not in a structural groupCa2(SiO4)235227119916648
Lithiophilite  (*)OlivineLiMn2+(PO4)2352272199165,199166155
Löllingite  (*)LöllingiteFeAs22352271199166762
Magnesio-hornblende  (*)Amphibole   Ca2(Mg4Al)(Si7Al)O22(OH)22352271199166238
Magnetite  (*)SpinelFe2+Fe3+2O4235227119916614899
Masutomilite  (*)MicaKLiAlMn2+(Si3Al)O10(F,OH)2235227119916612
Melanterite  (*)MelanteriteFe(SO4)·7H2O2352271199166915
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O2352271199166388
Microcline  (*)FeldsparK(AlSi3O8)2352272199165,1991664924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O2352271199166129
Molybdenite  (*)MolybdeniteMoS223522711991665800
Monazite-(Ce)  (*)MonaziteCe(PO4)2352271199166945
Montebrasite  (*)NoneLiAl(PO4)(OH)2352272199165,199166200
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O23522711991661508
Moraesite  (*)NoneBe2(PO4)(OH)·4H2O235227119916635
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22352272199165,19916617380
Natrophilite  (*)OlivineNaMn2+(PO4)23522711991665
Opal  (*)AmorphousSiO2·nH2O23522711991662994
Parsonsite  (*)NonePb2(UO2)(PO4)2235227119916663
Petalite  (*)Not in a structural groupLiAlSi4O102352271199166124
Phenakite  (*)PhenakiteBe2(SiO4)2352271199166326
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O2352272199165,199166265
Pollucite  (*)AnalcimeCs(Si2Al)O6·nH2O2352271199166140
Purpurite  (*)OlivineMn3+(PO4)235227119916680
Pyrite  (*)PyriteFeS22352272199165,19916639462
Pyrrhotite  (*)NickelineFe7S823522711991669056
Quartz  (*)QuartzSiO22352272199165,19916661156
Rhodochrosite  (*)CalciteMn(CO3)2352272199165,1991661711
Rutile  (*)RutileTiO223522711991665614
Scheelite  (*)ScheeliteCa(WO4)23522711991664894
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)2352272199165,1991662705
Sicklerite  (*)OlivineLiMn2+(PO4)235227119916666
Siderite  (*)CalciteFe(CO3)23522711991666417
Spessartine  (*)GarnetMn2+3Al2(SiO4)323522711991661214
Sphalerite  (*)SphaleriteZnS2352272199165,19916621482
Spodumene  (*)PyroxeneLiAlSi2O62352272199165,199166688
Spurrite  (*)Spurrite-AfwilliteCa5(SiO4)2(CO3)235227119916654
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)2352271199166978
Sulphur  (*)SulphurS23522711991662045
Tantalite-(Mn)  (*)ColumbiteMn2+Ta2O62352271199166211
Titanite  (*)TitaniteCaTi(SiO4)O23522711991664899
Topaz  (*)TopazAl2SiO4F223522711991661476
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)223522711991662562
Triplite  (*)TripliteMn2+2(PO4)F2352271199166233
Uraninite  (*)FluoriteUO22352272199165,1991662718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O2352271199166890
Wardite  (*)WarditeNaAl3(PO4)2(OH)4·2H2O235227119916658
Wodginite  (*)ColumbiteMn2+Sn4+Ta2O8235227119916678
Wollastonite  (*)WollastoniteCaSiO323522711991661247
Zircon  (*)ZirconZr(SiO4)23522711991665251
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)2352272199165,1991661025


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
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

All locality data graciously provided by mindat.org

All age data...

Other copyright data...