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:
Baldwin, Cumberland Co., Maine, USA

Oldest recorded age at locality: 265
Youngest recorded age at locality: 263

mindat Locality ID: 24572
mindat URL: http://www.mindat.org/loc-24572.html

Tectonic Settings:

Total number of sublocalities beneath "Baldwin, Cumberland Co., Maine, USA": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
West Baldwin

Latitude: 43°50'29"N
Longitude: 70°42'44"W
Decimal Degree (lat, lon): 43.841388888889,-70.712222222222
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 Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb S Si Sr U Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousApatiteAragoniteArseniosideriteArsenopyriteAutuniteBerauniteBerylBerylloniteCalcioferrite
CalciteChalcopyriteChildreniteClayClinozoisiteColumbiteEpidoteFairfielditeFeldsparFluorite
GadoliniteGarnetLöllingiteMicaMolybdeniteNickelineNoneNot in a structural groupOlivinePhosphosiderite
PyriteQuartzRockbridgeiteRocksaltRoscheriteSphaleriteSpinelStrunziteTourmalineVivianite
WurtziteZircon

57 IMA Minerals at location:
Albite  (*)Almandine  (*)Aragonite  (*)Arsenopyrite  (*)Autunite  (*)
Beraunite  (*)Beryl  (*)Beryllonite  (*)Calcite  (*)Chalcopyrite  (*)
Childrenite  (*)Columbite-(Fe)  (*)Diadochite  (*)Dolomite  (*)Elbaite  (*)
Eosphorite  (*)Epidote  (*)Fairfieldite  (*)Falsterite  (*)Fluorapatite  (*)
Gahnite  (*)Galena  (*)Graphite  (*)Greenockite  (*)Greifensteinite  (*)
Heterosite  (*)Hydroxylapatite  (*)Hydroxylherderite  (*)Lithiophilite  (*)Löllingite  (*)
Microcline  (*)Mitridatite  (*)Molybdenite  (*)Montebrasite  (*)Moraesite  (*)
Muscovite  (*)Opal  (*)Phosphosiderite  (*)Purpurite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Rhodochrosite  (*)Rockbridgeite  (*)Schoonerite  (*)
Schorl  (*)Siderite  (*)Sphalerite  (*)Strunzite  (*)Switzerite  (*)
Todorokite  (*)Triphylite  (*)Uralolite  (*)Uraninite  (*)Väyrynenite  (*)
Vivianite  (*)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)26526312168098803
Almandine  (*)GarnetFe2+3Al2(SiO4)326526312168092353
Aragonite  (*)AragoniteCa(CO3)26526312168093250
Arsenopyrite  (*)ArsenopyriteFeAsS26526312168099052
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O26526312168091272
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O2652631216809136
Beryl  (*)BerylBe3Al2Si6O1826526312168094286
Beryllonite  (*)BerylloniteNaBe(PO4)265263121680947
Calcite  (*)CalciteCa(CO3)265263121680927770
Chalcopyrite  (*)ChalcopyriteCuFeS2265263121680927198
Childrenite  (*)ChildreniteFe2+Al(PO4)(OH)2·H2O265263121680993
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O62652631216809518
Diadochite  (*)AmorphousFe3+2(PO4)(SO4)(OH)·6H2O265263121680981
Dolomite  (*)NoneCaMg(CO3)226526312168099895
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)26526312168098173
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O265263121680972
Falsterite  (*)Not in a structural groupCa2MgMn2+2Fe2+2Fe3+2Zn4(PO4)8(OH)4(H2O)1426526312168092
Fluorapatite  (*)ApatiteCa5(PO4)3F26526312168092740
Gahnite  (*)SpinelZnAl2O42652631216809445
Galena  (*)RocksaltPbS265263121680924243
Graphite  (*)NoneC26526312168092812
Greenockite  (*)WurtziteCdS2652631216809717
Greifensteinite  (*)RoscheriteCa2Be4Fe2+5(PO4)6(OH)4·6H2O265263121680927
Heterosite  (*)OlivineFe3+(PO4)2652631216809204
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH2652631216809367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)2652631216809119
Lithiophilite  (*)OlivineLiMn2+(PO4)2652631216809155
Löllingite  (*)LöllingiteFeAs22652631216809762
Microcline  (*)FeldsparK(AlSi3O8)26526312168094924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O2652631216809129
Molybdenite  (*)MolybdeniteMoS226526312168095800
Montebrasite  (*)NoneLiAl(PO4)(OH)2652631216809200
Moraesite  (*)NoneBe2(PO4)(OH)·4H2O265263121680935
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2265263121680917380
Opal  (*)AmorphousSiO2·nH2O26526312168092994
Phosphosiderite  (*)PhosphosideriteFe3+(PO4)·2H2O2652631216809182
Purpurite  (*)OlivineMn3+(PO4)265263121680980
Pyrite  (*)PyriteFeS2265263121680939462
Pyrrhotite  (*)NickelineFe7S826526312168099056
Quartz  (*)QuartzSiO2265263121680961156
Rhodochrosite  (*)CalciteMn(CO3)26526312168091711
Rockbridgeite  (*)Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)52652631216809206
Schoonerite  (*)CalcioferriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2(H2O)7·2H2O265263121680913
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)26526312168092705
Siderite  (*)CalciteFe(CO3)26526312168096417
Sphalerite  (*)SphaleriteZnS265263121680921482
Strunzite  (*)StrunziteMn2+Fe3+2(PO4)2(OH)2·6H2O265263121680998
Switzerite  (*)NoneMn2+3(PO4)2·7H2O265263121680921
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O2652631216809433
Triphylite  (*)OlivineLiFe2+(PO4)2652631216809313
Uralolite  (*)NoneCa2Be4(PO4)3(OH)3·5H2O26526312168098
Uraninite  (*)FluoriteUO226526312168092718
Väyrynenite  (*)NoneBeMn2+(PO4)(OH)265263121680915
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O2652631216809636
Zircon  (*)ZirconZr(SiO4)26526312168095251


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
Bradley_2012_092265263264±1U/Pb zircon  YesZircon  237377Sebago, Cumberland Co., Maine, USAMt. Mica (Irish Pit)McCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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