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:
Groton, Grafton Co., New Hampshire, USA

Oldest recorded age at locality: 339
Youngest recorded age at locality: 294

mindat Locality ID: 14500
mindat URL: http://www.mindat.org/loc-14500.html

Tectonic Settings:

Total number of sublocalities beneath "Groton, Grafton Co., New Hampshire, USA": 74
Total number of bottom-level sublocalities: 72

Number of Child Localities: 65
Child Localities:
American Quarry
Ashley Quarry
Black Russian No. 1 Quarry
Brown Lot No. 10 Quarry
Brown Lot Quarry (Chapman Quarry)
Charles Davis Mine
Craylip Prospect
Diamond Ledge Quarry
Draper Quarry
Eastman Prospects
Fletcher Mine
Frank Davis Prospect
General Electric Prospect
Hackett Mine
Holden Quarry
J.W. Burley Quarry
Mica Products Company Quarries
Nancy Quarries
Newt Kinney Quarry
Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine)
Palermo No. 10 Prospect
Palermo No. 11 Prospect
Palermo No. 12 Prospect
Palermo No. 13 Prospect
Palermo No. 14 Prospect
Palermo No. 15 Prospect
Palermo No. 16 Mine
Palermo No. 17 Prospect
Palermo No. 18 Prospect
Palermo No. 19 Prospect
Palermo No. 2 Mine
Palermo No. 20 Prospect
Palermo No. 21 Prospect
Palermo No. 22 Prospect
Palermo No. 23 Prospect
Palermo No. 24 Prospect
Palermo No. 25 Prospect
Palermo No. 26 Prospect
Palermo No. 27 Pegmatite
Palermo No. 3 Mine
Palermo No. 4 Prospect
Palermo No. 5 Prospect
Palermo No. 6 Quarry
Palermo No. 7 Prospect
Palermo No. 8 Prospect
Palermo No. 9 Prospect
Pike Ledge Prospects
Plume Mine (Plume Quarry)
Puffer Quarry
Rice No. 28 Prospect
Rice No. 29 Prospect
Rice No. 30 Prospect
Rice No. 31 Prospect
Rice No. 32 Prospect
Rice No. 33 Prospect
Rice No. 34 Prospect
Rice No. 35 Prospect
Rice No. 36 Prospect
Rice No. 37 Prospect
Rice No. 38 Prospect
Rice Quarry
Stinson Craig Prospects
Union Quarry
Valencia Mine
Wood Quarry

Latitude: 43°45'19"N
Longitude: 71°52'24"W
Decimal Degree (lat, lon): 43.755277777778,-71.873333333333
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 Ba Be Bi C Ca Ce Cl Cu F Fe H K Li Mg Mn Na Nb O P Pb S Si Sr Ta Ti U Y Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AlluauditeAluniteAmorphousApatiteAragoniteArrojaditeArsenicArseniosideriteArsenopyriteArthurite
AutuniteBerauniteBerylBerylloniteBjarebyiteBrackebuschiteCalcioferriteCalciteCarminiteCerite
ChalcopyriteChildreniteChloriteClayColumbiteCompreignaciteCoronaditeCorundumCovelliteDiaspore
DufréniteFairfielditeFeldsparFluoriteGadoliniteGarnetGraftoniteGypsumHopeiteHureaulite
JahnsiteKaoliniteLöllingiteLaueiteLazuliteLeucophosphiteMalachiteMarcasiteMelanteriteMeta-autunite
MicaNickelineNoneNot in a structural groupOlivinePhosphophyllitePhosphosideritePhosphuranylitePyriteQuartz
ReddingiteRockbridgeiteRocksaltRoscheriteRutileSchoepiteSmectite-vermiculiteSouzaliteSphaleriteSpinel
StewartiteStibniteStrunziteSymplesiteTapioliteTopazTourmalineTridymiteVivianiteWagnerite
WarditeZircon

159 IMA Minerals at location:
Albite  (*)Almandine  (*)Anapaite  (*)Anatase  (*)Annite  (*)
Arrojadite-(KFe)  (*)Arsenopyrite  (*)Augelite  (*)Autunite  (*)Azurite  (*)
Barbosalite  (*)Beraunite  (*)Bermanite  (*)Bertrandite  (*)Beryl  (*)
Beryllonite  (*)Birnessite  (*)Bismuth  (*)Bismuthinite  (*)Bjarebyite  (*)
Bornite  (*)Brazilianite  (*)Brushite  (*)Cacoxenite  (*)Cerussite  (*)
Chalcopyrite  (*)Chamosite  (*)Childrenite  (*)Chlorapatite  (*)Collinsite  (*)
Columbite-(Fe)  (*)Compreignacite  (*)Covellite  (*)Crandallite  (*)Cuprite  (*)
Diadochite  (*)Djurleite  (*)Dufrénite  (*)Eleonorite  (*)Eosphorite  (*)
Fairfieldite  (*)Falsterite  (*)Ferrirockbridgeite  (*)Ferrisicklerite  (*)Ferrostrunzite  (*)
Florencite-(Ce)  (*)Fluorapatite  (*)Foggite  (*)Frondelite  (*)Galena  (*)
Goedkenite  (*)Goethite  (*)Gordonite  (*)Gormanite  (*)Goyazite  (*)
Graftonite  (*)Greifensteinite  (*)Gypsum  (*)Hagendorfite  (*)Hematite  (*)
Heterosite  (*)Hinsdalite  (*)Hisingerite  (*)Hollandite  (*)Hopeite  (*)
Hureaulite  (*)Hydroxylapatite  (*)Hydroxylherderite  (*)Ice  (*)Jahnsite-(CaMnFe)  (*)
Jahnsite-(CaMnMg)  (*)Jahnsite-(CaMnMn)  (*)Keckite  (*)Kryzhanovskite  (*)Kulanite  (*)
Landesite  (*)Laueite  (*)Lazulite  (*)Lefontite  (*)Leucophosphite  (*)
Löllingite  (*)Ludlamite  (*)Magnetite  (*)Malachite  (*)Marcasite  (*)
Melanterite  (*)Messelite  (*)Meta-autunite  (*)Metatorbernite  (*)Metavivianite  (*)
Microcline  (*)Mitridatite  (*)Montebrasite  (*)Moraesite  (*)Muscovite  (*)
Natropalermoite  (*)Nizamoffite  (*)Nontronite  (*)Opal  (*)Palermoite  (*)
Parascholzite  (*)Uranophane-β  (*)Paravauxite  (*)Paulscherrerite  (*)Phosphoferrite  (*)
Phosphophyllite  (*)Phosphosiderite  (*)Phosphuranylite  (*)Pseudolaueite  (*)Pseudomalachite  (*)
Pyrite  (*)Pyromorphite  (*)Pyrrhotite  (*)Quartz  (*)Realgar  (*)
Reddingite  (*)Rhodochrosite  (*)Rockbridgeite  (*)Roscherite  (*)Rutherfordine  (*)
Rutile  (*)Samuelsonite  (*)Sarcopside  (*)Schoepite  (*)Schoonerite  (*)
Schorl  (*)Scorzalite  (*)Siderite  (*)Sillimanite  (*)Sinkankasite  (*)
Smithsonite  (*)Souzalite  (*)Sphalerite  (*)Stewartite  (*)Strengite  (*)
Strunzite  (*)Tantalite-(Fe)  (*)Tapiolite-(Fe)  (*)Tavorite  (*)Todorokite  (*)
Topaz  (*)Torbernite  (*)Triphylite  (*)Triploidite  (*)Uraninite  (*)
Uranophane-α  (*)Ushkovite  (*)Vandendriesscheite  (*)Vivianite  (*)Wardite  (*)
Whiteite-(CaMnMg)  (*)Whiteite-(MnFeMg)  (*)Whitlockite  (*)Whitmoreite  (*)Wolfeite  (*)
Xanthoxenite  (*)Xenotime-(Y)  (*)Zanazziite  (*)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)33929446242215,242216,242217,242218,242219,242220,242221,242222,242223,242224,242225,242226,242227,242228,242229,242230,242231,242232,242233,242234,242236,242237,242238,242239,242240,242241,242242,242243,242247,242256,242257,242258,242259,242260,242261,242263,242277,242279,242280,242281,242282,242283,242284,242285,242286,2422878803
Almandine  (*)GarnetFe2+3Al2(SiO4)333929440242215,242216,242217,242218,242219,242220,242221,242222,242223,242224,242225,242226,242227,242228,242229,242230,242231,242232,242233,242234,242235,242236,242237,242239,242243,242247,242256,242260,242263,242265,242266,242271,242277,242278,242279,242280,242281,242282,242287,2422882353
Anapaite  (*)Not in a structural groupCa2Fe2+(PO4)2·4H2O326294124223625
Anatase  (*)Not in a structural groupTiO23262942242220,2422362162
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)25242218,242219,242234,242263,242280356
Arrojadite-(KFe)  (*)Arrojadite(KNa)Fe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)23262944242232,242234,242236,24227750
Arsenopyrite  (*)ArsenopyriteFeAsS3392945242220,242225,242234,242236,2422479052
Augelite  (*)NoneAl2(PO4)(OH)33262942242236,24224779
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O3392944242220,242225,242236,2422431272
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)232629412422365509
Barbosalite  (*)LazuliteFe2+Fe3+2(PO4)2(OH)2326294124223643
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O3392944242220,242225,242236,242247136
Bermanite  (*)ArthuriteMn2+Mn3+2(PO4)2(OH)2·4H2O3392942242225,24223655
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)23392942242225,242236606
Beryl  (*)BerylBe3Al2Si6O1833929418242216,242217,242220,242222,242225,242227,242228,242231,242232,242236,242243,242247,242256,242263,242267,242277,242278,2422874286
Beryllonite  (*)BerylloniteNaBe(PO4)3262942242220,24223647
Birnessite  (*)None(Na,Ca,K)0.6(Mn4+,Mn3+)2O4·1.5H2O3262941242236178
Bismuth  (*)ArsenicBi3262942242236,2422471966
Bismuthinite  (*)StibniteBi2S332629412422361935
Bjarebyite  (*)BjarebyiteBaMn2+2Al2(PO4)3(OH)33262942242220,2422366
Bornite  (*)NoneCu5FeS43262943242236,242243,2422475516
Brazilianite  (*)Not in a structural groupNaAl3(PO4)2(OH)43392943242220,242225,24223659
Brushite  (*)GypsumCa(PO3OH)·2H2O3262941242236104
Cacoxenite  (*)NoneFe3+24AlO6(PO4)17(OH)12·75H2O3262941242236280
Cerussite  (*)AragonitePb(CO3)32629412422364979
Chalcopyrite  (*)ChalcopyriteCuFeS23262944242220,242236,242243,24224727198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)81242263577
Childrenite  (*)ChildreniteFe2+Al(PO4)(OH)2·H2O3262943242220,242236,24224793
Chlorapatite  (*)ApatiteCa5(PO4)3Cl3262942242236,242247203
Collinsite  (*)FairfielditeCa2Mg(PO4)2·2H2O3262942242236,24224738
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O63262943242236,242247,242287518
Compreignacite  (*)CompreignaciteK2(UO2)6O4(OH)6·7H2O326294124223627
Covellite  (*)CovelliteCuS32629412422364165
Crandallite  (*)AluniteCaAl3(PO4)(PO3OH)(OH)63262943242220,242236,242247310
Cuprite  (*)Not in a structural groupCu2O32629412422362970
Diadochite  (*)AmorphousFe3+2(PO4)(SO4)(OH)·6H2O3262942242236,24224781
Djurleite  (*)NoneCu31S163262941242236300
Dufrénite  (*)DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O3262941242236139
Eleonorite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O3392942242225,24223651
Eosphorite  (*)ChildreniteMn2+Al(PO4)(OH)2·H2O3392943242225,242236,242247128
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O3262942242236,24224772
Falsterite  (*)Not in a structural groupCa2MgMn2+2Fe2+2Fe3+2Zn4(PO4)8(OH)4(H2O)1432629412422362
Ferrirockbridgeite  (*)Rockbridgeite(Fe3+0.67   0.33)2(Fe3+)3(PO4)3(OH)4(H2O)32629412422361
Ferrisicklerite  (*)OlivineLi1-x(Fe3+,Mn2+)(PO4)3262942242236,242247108
Ferrostrunzite  (*)StrunziteFe2+Fe3+2(PO4)2(OH)2·6H2O326294124223619
Florencite-(Ce)  (*)AluniteCeAl3(PO4)2(OH)6326294124223673
Fluorapatite  (*)ApatiteCa5(PO4)3F32629410242218,242220,242232,242234,242236,242237,242243,242247,242263,2422872740
Foggite  (*)NoneCaAl(PO4)(OH)2·H2O32629412422364
Frondelite  (*)Rockbridgeite(Mn2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)53392942242225,24224752
Galena  (*)RocksaltPbS3262944242220,242236,242243,24224724243
Goedkenite  (*)BrackebuschiteSr2Al(PO4)2(OH)32629412422363
Goethite  (*)DiasporeFeO(OH)3262944242220,242234,242236,2422437437
Gordonite  (*)LaueiteMgAl2(PO4)2(OH)2·8H2O3262942242236,24224718
Gormanite  (*)SouzaliteFe2+3Al4(PO4)4(OH)6·2H2O3262943242220,242236,24224723
Goyazite  (*)AluniteSrAl3(PO4)(PO3OH)(OH)63262943242220,242236,242247173
Graftonite  (*)GraftoniteFe2+Fe2+2(PO4)233929415242217,242223,242225,242232,242233,242234,242236,242238,242247,242256,242272,242277,242279,242280,242287107
Greifensteinite  (*)RoscheriteCa2Be4Fe2+5(PO4)6(OH)4·6H2O3262942242220,24223627
Gypsum  (*)GypsumCa(SO4)·2H2O32629412422366890
Hagendorfite  (*)AlluauditeNa2MnFe2+Fe3+(PO4)3326294124223617
Hematite  (*)CorundumFe2O33262943242236,242243,24224714640
Heterosite  (*)OlivineFe3+(PO4)3392944242225,242236,242243,242277204
Hinsdalite  (*)AlunitePbAl3(SO4)(PO4)(OH)6326294124223682
Hisingerite  (*)Kaolinite ClayFe2Si2O5(OH)4·2H2O3262941242236144
Hollandite  (*)CoronaditeBa(Mn4+6Mn3+2)O163262941242236243
Hopeite  (*)HopeiteZn3(PO4)2·4H2O326294124223629
Hureaulite  (*)HureauliteMn2+5(PO3OH)2(PO4)2·4H2O3392942242225,242236125
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH3262942242236,242247367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)3392943242220,242225,242236119
Ice  (*)Amorphous TridymiteH2O326294124223659
Jahnsite-(CaMnFe)  (*)JahnsiteCaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O3392943242225,242236,24224727
Jahnsite-(CaMnMg)  (*)JahnsiteCaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2O339319124222514
Jahnsite-(CaMnMn)  (*)JahnsiteCaMn2+Mn2+2Fe3+2(PO4)4(OH)2·8H2O3262942242236,24224718
Keckite  (*)JahnsiteCaMn(Fe3+,Mn)2Fe3+2(PO4)4(OH)3·7H2O326294124223610
Kryzhanovskite  (*)Reddingite(Fe3+,Mn2+)3(PO4)2(OH,H2O)33262942242236,24224734
Kulanite  (*)BjarebyiteBaFe2+2Al2(PO4)3(OH)33262942242220,24223612
Landesite  (*)ReddingiteMn2+9Fe3+3(PO4)8(OH)3·9H2O326294124223614
Laueite  (*)LaueiteMn2+Fe3+2(PO4)2(OH)2·8H2O3392947242217,242225,242236,242243,242247,242277,24228770
Lazulite  (*)LazuliteMgAl2(PO4)2(OH)23262943242232,242236,242247232
Lefontite  (*)ChildreniteFe2Al2Be(PO4)2(OH)632629412422362
Leucophosphite  (*)LeucophosphiteKFe3+2(PO4)2(OH)·2H2O3392943242220,242225,242236110
Löllingite  (*)LöllingiteFeAs23262942242236,242247762
Ludlamite  (*)NoneFe2+3(PO4)2·4H2O3392943242225,242236,24224766
Magnetite  (*)SpinelFe2+Fe3+2O43262945242232,242234,242236,242247,24226314899
Malachite  (*)MalachiteCu2(CO3)(OH)2326294124223612537
Marcasite  (*)MarcasiteFeS232629412422365674
Melanterite  (*)MelanteriteFe(SO4)·7H2O3262941242236915
Messelite  (*)FairfielditeCa2Fe2+(PO4)2·2H2O326294124223643
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O3392943242220,242225,242236388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O3392943242220,242225,242236443
Metavivianite  (*)SymplesiteFe2+Fe3+2(PO4)2(OH)2·6H2O3262942242236,24224726
Microcline  (*)FeldsparK(AlSi3O8)33929438242215,242216,242217,242218,242219,242220,242221,242222,242223,242224,242225,242226,242227,242228,242229,242230,242231,242232,242235,242236,242242,242243,242247,242256,242263,242265,242277,242278,242279,242280,242281,242282,242283,242284,242285,242286,242287,2422884924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O3262943242236,242243,242247129
Montebrasite  (*)NoneLiAl(PO4)(OH)3262942242236,242247200
Moraesite  (*)NoneBe2(PO4)(OH)·4H2O3262943242220,242236,24228735
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)233929469242215,242216,242217,242218,242219,242220,242221,242222,242223,242224,242225,242226,242227,242228,242229,242230,242231,242232,242233,242234,242235,242236,242237,242238,242239,242240,242241,242242,242243,242245,242246,242247,242248,242249,242252,242253,242254,242255,242256,242257,242258,242259,242260,242261,242263,242265,242266,242267,242268,242269,242270,242271,242272,242273,242274,242275,242276,242277,242278,242279,242280,242281,242282,242283,242284,242285,242286,242287,24228817380
Natropalermoite  (*)CarminiteNa2SrAl4(PO4)4(OH)432629412422361
Nizamoffite  (*)HopeiteMn2+Zn2(PO4)2(H2O)432629412422362
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O3262941242236471
Opal  (*)AmorphousSiO2·nH2O32629412422362994
Palermoite  (*)CarminiteLi2SrAl4(PO4)4(OH)432629412422363
Parascholzite  (*)NoneCaZn2(PO4)2·2H2O326294124223612
Uranophane-β  (*)NoneCa(UO2)2(SiO3OH)2·5H2O3262941242236144
Paravauxite  (*)LaueiteFe2+Al2(PO4)2(OH)2·8H2O3392944242220,242225,242236,24224719
Paulscherrerite  (*)None(UO2)(OH)232629412422363
Phosphoferrite  (*)ReddingiteFe2+3(PO4)2·3H2O326294124223631
Phosphophyllite  (*)PhosphophylliteZn2Fe2+(PO4)2·4H2O3262942242236,24224329
Phosphosiderite  (*)PhosphosideriteFe3+(PO4)·2H2O3392944242225,242236,242247,242287182
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O3262941242236182
Pseudolaueite  (*)StewartiteMn2+Fe3+2(PO4)2(OH)2·8H2O3262942242236,24224710
Pseudomalachite  (*)NoneCu5(PO4)2(OH)43262941242236369
Pyrite  (*)PyriteFeS23262947242220,242232,242234,242236,242243,242247,24226339462
Pyromorphite  (*)ApatitePb5(PO4)3Cl32629412422361725
Pyrrhotite  (*)NickelineFe7S832629412422369056
Quartz  (*)QuartzSiO233929466242215,242216,242217,242218,242219,242220,242221,242222,242223,242224,242225,242226,242227,242228,242229,242230,242231,242232,242233,242234,242235,242236,242237,242238,242239,242240,242241,242242,242243,242245,242246,242247,242248,242252,242253,242254,242255,242256,242257,242258,242259,242260,242261,242263,242265,242266,242267,242269,242270,242271,242272,242273,242275,242276,242277,242278,242279,242280,242281,242282,242283,242284,242285,242286,242287,24228861156
Realgar  (*)NoneAsS3262941242236712
Reddingite  (*)ReddingiteMn2+3(PO4)2·3H2O326294124223624
Rhodochrosite  (*)CalciteMn(CO3)32629412422361711
Rockbridgeite  (*)Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)53392944242225,242236,242243,242247206
Roscherite  (*)RoscheriteCa2Mn2+5Be4(PO4)6(OH)4·6H2O326294124223622
Rutherfordine  (*)None(UO2)(CO3)326294124223658
Rutile  (*)RutileTiO232629412422475614
Samuelsonite  (*)NoneCa9Mn2+4Al2(PO4)10(OH)232629412422364
Sarcopside  (*)NoneFe2+3(PO4)2326294124223658
Schoepite  (*)Schoepite(UO2)4O(OH)6(H2O)6326294124223694
Schoonerite  (*)CalcioferriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2(H2O)7·2H2O3262942242236,24224313
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)32629436242215,242216,242217,242218,242219,242220,242222,242224,242227,242228,242231,242232,242236,242237,242238,242243,242247,242254,242256,242257,242258,242259,242260,242263,242266,242267,242268,242271,242272,242277,242278,242279,242280,242281,242282,2422872705
Scorzalite  (*)LazuliteFe2+Al2(PO4)2(OH)23262945242220,242232,242236,242243,24224760
Siderite  (*)CalciteFe(CO3)3262944242220,242236,242243,2422476417
Sillimanite  (*)Not in a structural groupAl2SiO53392948242220,242221,242225,242228,242233,242236,242277,2422871516
Sinkankasite  (*)NoneMn2+Al(PO3OH)2(OH)·6H2O32629412422363
Smithsonite  (*)CalciteZn(CO3)32629412422362473
Souzalite  (*)SouzaliteMg3Al4(PO4)4(OH)6·2H2O3262942242236,24224711
Sphalerite  (*)SphaleriteZnS3262942242236,24224721482
Stewartite  (*)StewartiteMn2+Fe3+2(PO4)2(OH)2·8H2O3392945242220,242225,242236,242247,24228748
Strengite  (*)NoneFe3+(PO4)·2H2O3392943242225,242236,242247263
Strunzite  (*)StrunziteMn2+Fe3+2(PO4)2(OH)2·6H2O3392945242220,242225,242236,242243,24224798
Tantalite-(Fe)  (*)ColumbiteFe2+Ta2O6326294124223699
Tapiolite-(Fe)  (*)TapioliteFe2+Ta2O6326294124224788
Tavorite  (*)NoneLiFe3+(PO4)(OH)3392943242225,242236,24226535
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O3262941242236433
Topaz  (*)TopazAl2SiO4F212422201476
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O3392946242220,242225,242236,242247,242264,2422871059
Triphylite  (*)OlivineLiFe2+(PO4)33929417242217,242220,242224,242225,242232,242233,242234,242236,242238,242243,242247,242272,242277,242278,242279,242280,242287313
Triploidite  (*)WagneriteMn2+2(PO4)(OH)326294124223629
Uraninite  (*)FluoriteUO23262942242236,2422472718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O3262941242236890
Ushkovite  (*)LaueiteMgFe3+2(PO4)2(OH)2·8H2O3262943242220,242236,24224718
Vandendriesscheite  (*)NonePb1.6(UO2)10O6(OH)11·11H2O326294124223652
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O3392949242225,242232,242234,242236,242243,242247,242256,242272,242277636
Wardite  (*)WarditeNaAl3(PO4)2(OH)4·2H2O326294124223658
Whiteite-(CaMnMg)  (*)JahnsiteCaMn2+Mg2Al2(PO4)4(OH)2·8H2O3262942242236,2422477
Whiteite-(MnFeMg)  (*)JahnsiteMn2+Fe2+Mg2Al2(PO4)4(OH)2·8H2O3262942242236,2422476
Whitlockite  (*)CeriteCa9Mg(PO3OH)(PO4)63262941242236104
Whitmoreite  (*)ArthuriteFe2+Fe3+2(PO4)2(OH)2·4H2O3262942242236,24224736
Wolfeite  (*)WagneriteFe2+2(PO4)(OH)3262942242236,24224743
Xanthoxenite  (*)NoneCa4Fe3+2(PO4)4(OH)2·3H2O3392942242225,24223629
Xenotime-(Y)  (*)ZirconY(PO4)3262941242247939
Zanazziite  (*)RoscheriteCa2Be4Mg5(PO4)6(OH)4·6H2O326294124223621
Zircon  (*)ZirconZr(SiO4)3262944242236,242243,242247,2422775251


2 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-0411339319329 ± 10K-ArAge of pegmatitemuscovite   Muscovite  6343Fletcher Mine, Groton, Grafton Co., New Hampshire, USAFletcherZartman et al. (1970)10.1130/0016-7606(1970)81[3359:APDOKR]2.0.CO;2GSAB81_3359 
Alexandra-0181326294326–294U-PbAge of pegmatitezircon11Dw303a  Zircon  3942Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAPalermo #1Bradley et al. (2016)10.3749/canmin.1600035CM54_945 

SampleSource LocalityReference URL
R070451Fletcher Mine, Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R070451
R130106Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R130106
R130091Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R130091
R130667Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R130667
R160083Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R160083
R140539Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R140539
R060367Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R060367
R130092Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R130092
R120141Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R120141
R090058Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R090058
R080052Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R080052
R110175Palermo No. 1 Mine (Palermo No. 1 Pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USAhttps://rruff.info/R110175

All locality data graciously provided by mindat.org

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