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:
Cumberland Co., Maine, USA

Oldest recorded age at locality: 265
Youngest recorded age at locality: 112

mindat Locality ID: 14248
mindat URL: http://www.mindat.org/loc-14248.html

Tectonic Settings:

Total number of sublocalities beneath "Cumberland Co., Maine, USA": 91
Total number of bottom-level sublocalities: 68

Number of Child Localities: 29
Child Localities:
Baldwin
Baldwin - Standish
Bridgton
Brunswick
Cape Elizabeth
Casco
Chebeague Island
Cumberland
Falmouth
Freeport
Frye Island
Gorham
Gray
Harpswell
Harrison
Long Island
Naples
New Gloucester
North Yarmouth
Portland
Pownal
Raymond
Scarborough
Sebago
South Portland
Standish
Westbrook
Windham
Yarmouth

Latitude: 43°54'58"N
Longitude: 70°21'"W
Decimal Degree (lat, lon): 43.916111111111,-70.35
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 C Ca Cd Ce Cl Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb S Si Sr Ti U Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleAndalusiteApatiteAragoniteArseniosideriteArsenopyriteAutuniteBerauniteBeryl
BerylloniteBrookiteCalcioferriteCalciteChalcopyriteChildreniteChloriteClayClinozoisiteColumbite
CorundumDiasporeEpidoteFairfielditeFeldsparFluoriteGadoliniteGarnetLöllingiteMeta-autunite
MicaMolybdeniteMonaziteNatroliteNickelineNoneNot in a structural groupOlivinePhosphosideritePyrite
PyroxeneQuartzRockbridgeiteRocksaltRoscheriteRutileScapoliteSphaleriteSpinelStaurolite
StrunziteTalcTitaniteTourmalineVesuvianiteVivianiteWurtziteZircon

100 IMA Minerals at location:
Actinolite  (*)Albite  (*)Almandine  (*)Anatase  (*)Andalusite  (*)
Ankerite  (*)Annite  (*)Anorthite  (*)Anthophyllite  (*)Aragonite  (*)
Arsenopyrite  (*)Autunite  (*)Beraunite  (*)Beryl  (*)Beryllonite  (*)
Brookite  (*)Calcite  (*)Chalcopyrite  (*)Chamosite  (*)Childrenite  (*)
Chrysoberyl  (*)Clinochlore  (*)Clinozoisite  (*)Columbite-(Fe)  (*)Cordierite  (*)
Corundum  (*)Cummingtonite  (*)Diadochite  (*)Diopside  (*)Dolomite  (*)
Elbaite  (*)Eosphorite  (*)Epidote  (*)Fairfieldite  (*)Falsterite  (*)
Fluorapatite  (*)Fluorite  (*)Gahnite  (*)Galena  (*)Gedrite  (*)
Goethite  (*)Graphite  (*)Greenockite  (*)Greifensteinite  (*)Grossular  (*)
Hematite  (*)Heterosite  (*)Hydroxylapatite  (*)Hydroxylherderite  (*)Ilmenite  (*)
Kyanite  (*)Lithiophilite  (*)Löllingite  (*)Magnesio-hornblende  (*)Magnetite  (*)
Margarite  (*)Marialite  (*)Meionite  (*)Meta-autunite  (*)Microcline  (*)
Mitridatite  (*)Molybdenite  (*)Monazite-(Ce)  (*)Montebrasite  (*)Moraesite  (*)
Muscovite  (*)Opal  (*)Phlogopite  (*)Phosphosiderite  (*)Purpurite  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Rhodochrosite  (*)Rockbridgeite  (*)
Rutile  (*)Schoonerite  (*)Schorl  (*)Scolecite  (*)Scorodite  (*)
Siderite  (*)Sillimanite  (*)Spessartine  (*)Sphalerite  (*)Spinel  (*)
Spodumene  (*)Staurolite  (*)Strunzite  (*)Switzerite  (*)Talc  (*)
Titanite  (*)Todorokite  (*)Tremolite  (*)Triphylite  (*)Uralolite  (*)
Uraninite  (*)Väyrynenite  (*)Vesuvianite  (*)Vivianite  (*)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)22652632216823,2168483419
Albite  (*)FeldsparNa(AlSi3O8)26526313216809,216819,216823,216824,216848,216849,216853,216859,216864,216868,216873,216884,2168858803
Almandine  (*)GarnetFe2+3Al2(SiO4)326526313216809,216818,216819,216824,216831,216841,216842,216849,216861,216873,216885,216892,2168942353
Anatase  (*)Not in a structural groupTiO22651123216814,216816,2168242162
Andalusite  (*)AndalusiteAl2SiO52652637216811,216842,216845,216848,216881,216882,2168831310
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)226526312168243092
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)22652634216818,216849,216859,216861356
Anorthite  (*)FeldsparCa(Al2Si2O8)26526312168751036
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)22652631216848718
Aragonite  (*)AragoniteCa(CO3)26526312168093250
Arsenopyrite  (*)ArsenopyriteFeAsS2652634216809,216818,216864,2168859052
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O2652633216809,216834,2168731272
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O2652631216809136
Beryl  (*)BerylBe3Al2Si6O182652639216809,216817,216818,216819,216824,216831,216873,216885,2168944286
Beryllonite  (*)BerylloniteNaBe(PO4)265263121680947
Brookite  (*)BrookiteTiO22652631216814700
Calcite  (*)CalciteCa(CO3)2652637216809,216823,216824,216843,216844,216875,21688727770
Chalcopyrite  (*)ChalcopyriteCuFeS22652632216809,21682427198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)82652632216824,216859577
Childrenite  (*)ChildreniteFe2+Al(PO4)(OH)2·H2O265263121680993
Chrysoberyl  (*)OlivineBeAl2O42652631216886321
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)826526312168491756
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)2652633216823,216824,2168751025
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O62652635216809,216819,216871,216873,216884518
Cordierite  (*)BerylMg2Al4Si5O1826526312168491008
Corundum  (*)CorundumAl2O326526312168481797
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)22652634216848,216849,216850,216853327
Diadochite  (*)AmorphousFe3+2(PO4)(SO4)(OH)·6H2O265263121680981
Diopside  (*)PyroxeneCaMgSi2O62652633216823,216824,2168754135
Dolomite  (*)NoneCaMg(CO3)22652632216809,2168249895
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)2652631216809520
Eosphorite  (*)ChildreniteMn2+Al(PO4)(OH)2·H2O2652631216809128
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)2652634216809,216824,216836,2168648173
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O265263121680972
Falsterite  (*)Not in a structural groupCa2MgMn2+2Fe2+2Fe3+2Zn4(PO4)8(OH)4(H2O)1426526312168092
Fluorapatite  (*)ApatiteCa5(PO4)3F2652636216809,216819,216833,216870,216885,2168862740
Fluorite  (*)FluoriteCaF226526312168239617
Gahnite  (*)SpinelZnAl2O42652631216809445
Galena  (*)RocksaltPbS265263121680924243
Gedrite  (*)Amphibole   Mg2(Mg3Al2)(Si6Al2)O22(OH)22652632216849,216850178
Goethite  (*)DiasporeFeO(OH)2652632216859,2168837437
Graphite  (*)NoneC2652633216809,216883,2168962812
Greenockite  (*)WurtziteCdS2652631216809717
Greifensteinite  (*)RoscheriteCa2Be4Fe2+5(PO4)6(OH)4·6H2O265263121680927
Grossular  (*)GarnetCa3Al2(SiO4)32652636216823,216824,216841,216847,216849,2168751544
Hematite  (*)CorundumFe2O3265263121688314640
Heterosite  (*)OlivineFe3+(PO4)2652632216809,216885204
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH2652631216809367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)2652631216809119
Ilmenite  (*)CorundumFe2+Ti4+O32652632216883,2168925433
Kyanite  (*)Not in a structural groupAl2OSiO42652635216841,216846,216883,216892,2168941507
Lithiophilite  (*)OlivineLiMn2+(PO4)2652631216809155
Löllingite  (*)LöllingiteFeAs22652632216809,216885762
Magnesio-hornblende  (*)Amphibole   Ca2(Mg4Al)(Si7Al)O22(OH)22652631216849238
Magnetite  (*)SpinelFe2+Fe3+2O4265263121687014899
Margarite  (*)Mica ClayCaAl2Si2Al2O10(OH)22652631216849168
Marialite  (*)ScapoliteNa4Al3Si9O24Cl2652632216874,216875139
Meionite  (*)ScapoliteCa4Al6Si6O24(CO3)2652632216823,216849176
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O2652632216834,216873388
Microcline  (*)FeldsparK(AlSi3O8)26511225216809,216816,216818,216819,216820,216824,216831,216832,216833,216834,216835,216837,216838,216857,216864,216867,216868,216869,216870,216871,216872,216873,216876,216884,2168944924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O2652631216809129
Molybdenite  (*)MolybdeniteMoS226526312168095800
Monazite-(Ce)  (*)MonaziteCe(PO4)2652632216868,216873945
Montebrasite  (*)NoneLiAl(PO4)(OH)2652631216809200
Moraesite  (*)NoneBe2(PO4)(OH)·4H2O265263121680935
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)226526332216809,216818,216819,216820,216824,216829,216831,216832,216833,216834,216835,216836,216837,216838,216849,216853,216857,216867,216868,216869,216870,216871,216872,216873,216876,216881,216882,216883,216884,216885,216886,21689417380
Opal  (*)AmorphousSiO2·nH2O2652633216809,216824,2168302994
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)22652634216843,216844,216849,2168872273
Phosphosiderite  (*)PhosphosideriteFe3+(PO4)·2H2O2652631216809182
Purpurite  (*)OlivineMn3+(PO4)265263121680980
Pyrite  (*)PyriteFeS22652639216809,216823,216824,216829,216833,216838,216859,216864,21687339462
Pyrrhotite  (*)NickelineFe7S82652634216809,216811,216881,2168829056
Quartz  (*)QuartzSiO226511249216809,216811,216814,216816,216818,216819,216820,216823,216824,216829,216831,216832,216833,216834,216835,216836,216837,216838,216841,216842,216843,216844,216845,216846,216849,216853,216857,216859,216861,216862,216864,216867,216868,216869,216870,216871,216872,216873,216875,216876,216881,216882,216883,216884,216885,216892,216893,216894,21689661156
Rhodochrosite  (*)CalciteMn(CO3)26526312168091711
Rockbridgeite  (*)Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)52652631216809206
Rutile  (*)RutileTiO226526312168245614
Schoonerite  (*)CalcioferriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2(H2O)7·2H2O265263121680913
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)26526311216809,216819,216824,216829,216831,216859,216864,216867,216872,216873,2168852705
Scolecite  (*)NatroliteCa(Si3Al2)O10·3H2O2652631216893390
Scorodite  (*)NoneFe3+(AsO4)·2H2O26526312168851153
Siderite  (*)CalciteFe(CO3)26526312168096417
Sillimanite  (*)Not in a structural groupAl2SiO52652639216811,216841,216842,216846,216849,216853,216882,216883,2168971516
Spessartine  (*)GarnetMn2+3Al2(SiO4)326526312168481214
Sphalerite  (*)SphaleriteZnS2652632216809,21682421482
Spinel  (*)SpinelMgAl2O426526312168491934
Spodumene  (*)PyroxeneLiAlSi2O62652631216894688
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)2652636216841,216842,216846,216849,216892,216894978
Strunzite  (*)StrunziteMn2+Fe3+2(PO4)2(OH)2·6H2O265263121680998
Switzerite  (*)NoneMn2+3(PO4)2·7H2O265263121680921
Talc  (*)Clay TalcMg3Si4O10(OH)226526312168523337
Titanite  (*)TitaniteCaTi(SiO4)O2652635216823,216824,216848,216849,2168754899
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O2652631216809433
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)226526312168522562
Triphylite  (*)OlivineLiFe2+(PO4)2652632216809,216885313
Uralolite  (*)NoneCa2Be4(PO4)3(OH)3·5H2O26526312168098
Uraninite  (*)FluoriteUO22652633216809,216868,2168732718
Väyrynenite  (*)NoneBeMn2+(PO4)(OH)265263121680915
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)102652634216823,216824,216841,2168751395
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O2652631216809636
Zircon  (*)ZirconZr(SiO4)2652633216809,216870,2168735251


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
AREPS5_257-00027112112112        229120Pleasant Mountain, Bridgton, Cumberland Co., Maine, USAPleasant MountainZartman (1977)10.1146/annurev.ea.05.050177.001353AREPS5_257 
Bradley_2012_092265263264±1U/Pb zircon   Zircon  237377Sebago, Cumberland Co., Maine, USAMt. Mica (Irish Pit)McCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 

SampleSource LocalityReference URL
R040129LaChance Quarry, Brunswick, Cumberland Co., Maine, USAhttps://rruff.info/R040129

All locality data graciously provided by mindat.org

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