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:
Stoneham, Oxford Co., Maine, USA

Oldest recorded age at locality: 234.8
Youngest recorded age at locality: 228.8

mindat Locality ID: 7986
mindat URL: http://www.mindat.org/loc-7986.html

Tectonic Settings:

Total number of sublocalities beneath "Stoneham, Oxford Co., Maine, USA": 27
Total number of bottom-level sublocalities: 27

Number of Child Localities: 27
Child Localities:
Adams Ledge Prospect
Aldrich Quarry
Alexander Quarry
Allen Mountain Prospect (Allen Mountain Spar Opening)
Andrews Prospect
Barbour Prospect
Beryllonite Locality (Mcallister Occurrence)
Butters Mountain Locality
Cal Stearns Hill Mica Prospect
Cole Quarry
Durgin Mountain Locality
Foster Hill Prospects
Harding Hill Prospects
Joe McKeen Mountain Locality (McKean Farm)
Jones Beryl Locality
Lord Hill Quarry (Lord Hill Mine)
McAllister Spar Prospects
Melrose Quarry
Palmer Mountain Locality
Rattlesnake Mountain Locality
Shirley Brook Topaz Locality
Styles Mountain Locality
Sugarloaf Mountain
Verrill Locality
Virginia Lake Prospect
Weymouth Hill Locality
Willis Warren Quarry

Latitude: 44°15'20"N
Longitude: 70°55'33"W
Decimal Degree (lat, lon): 44.255555555556,-70.925833333333
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 Cu F Fe H K Li Mg Mn Na Nb O P S Si Sn Sr U Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteAmorphousApatiteArsenicArseniosideriteArsenopyriteArthuriteAutuniteBerauniteBeryl
BerylloniteBismutiteCalciteChildreniteClayColumbiteCoronaditeDiasporeFairfielditeFeldspar
FluoriteGadoliniteGarnetHureauliteLaueiteMeta-autuniteMicaNickelineNoneNot in a structural group
OlivinePhenakitePhosphosideritePhosphuranylitePyriteQuartzRutileSmectite-vermiculiteSphaleriteSpinel
StewartiteStibniteStrunziteTopazTourmalineTripliteVivianiteZircon

61 IMA Minerals at location:
Albite  (*)Almandine  (*)Arsenopyrite  (*)Autunite  (*)Beraunite  (*)
Bermanite  (*)Bertrandite  (*)Beryl  (*)Beryllonite  (*)Bismuth  (*)
Bismuthinite  (*)Bismutite  (*)Cassiterite  (*)Chrysoberyl  (*)Columbite-(Fe)  (*)
Cryptomelane  (*)Diadochite  (*)Elbaite  (*)Eosphorite  (*)Fairfieldite  (*)
Fluorapatite  (*)Fluorite  (*)Gahnite  (*)Goethite  (*)Goyazite  (*)
Heterosite  (*)Hureaulite  (*)Hydroxylapatite  (*)Hydroxylherderite  (*)Laueite  (*)
Ludlamite  (*)Meta-autunite  (*)Metatorbernite  (*)Microcline  (*)Mitridatite  (*)
Montebrasite  (*)Montmorillonite  (*)Muscovite  (*)Opal  (*)Phenakite  (*)
Phosphosiderite  (*)Phosphuranylite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Rhodochrosite  (*)Schorl  (*)Siderite  (*)Sillimanite  (*)Sphalerite  (*)
Stewartite  (*)Strunzite  (*)Todorokite  (*)Topaz  (*)Torbernite  (*)
Triphylite  (*)Triplite  (*)Uraninite  (*)Uranophane-α  (*)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)234.8228.820217494,217496,217497,217498,217499,217500,217501,217502,217503,217504,217505,217506,217507,217508,217509,217511,217513,217514,217517,2175198803
Almandine  (*)GarnetFe2+3Al2(SiO4)3234.8228.88217494,217498,217500,217502,217503,217508,217510,2175192353
Arsenopyrite  (*)ArsenopyriteFeAsS12175029052
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O234.8228.84217494,217502,217508,2175101272
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O234.8228.82217502,217508136
Bermanite  (*)ArthuriteMn2+Mn3+2(PO4)2(OH)2·4H2O234.8228.8121750855
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)2234.8228.82217504,217508606
Beryl  (*)BerylBe3Al2Si6O18234.8228.819217493,217494,217497,217498,217499,217500,217502,217503,217504,217505,217506,217507,217508,217509,217510,217511,217512,217517,2175194286
Beryllonite  (*)BerylloniteNaBe(PO4)234.8228.84217499,217506,217508,21751547
Bismuth  (*)ArsenicBi234.8228.812175081966
Bismuthinite  (*)StibniteBi2S3234.8228.812175081935
Bismutite  (*)BismutiteBi2O2(CO3)234.8228.81217508716
Cassiterite  (*)RutileSnO2234.8228.84217499,217502,217506,2175085171
Chrysoberyl  (*)OlivineBeAl2O41217516321
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O6234.8228.82217502,217508518
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O16234.8228.81217508599
Diadochite  (*)AmorphousFe3+2(PO4)(SO4)(OH)·6H2O121750281
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)234.8228.81217508520
Eosphorite  (*)ChildreniteMn2+Al(PO4)(OH)2·H2O234.8228.82217502,217508128
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O121750272
Fluorapatite  (*)ApatiteCa5(PO4)3F234.8228.810217494,217496,217498,217499,217502,217504,217506,217508,217517,2175192740
Fluorite  (*)FluoriteCaF2234.8228.812175089617
Gahnite  (*)SpinelZnAl2O4234.8228.81217508445
Goethite  (*)DiasporeFeO(OH)234.8228.82217508,2175167437
Goyazite  (*)AluniteSrAl3(PO4)(PO3OH)(OH)6234.8228.81217508173
Heterosite  (*)OlivineFe3+(PO4)1217502204
Hureaulite  (*)HureauliteMn2+5(PO3OH)2(PO4)2·4H2O234.8228.82217502,217508125
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH234.8228.81217508367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)234.8228.81217508119
Laueite  (*)LaueiteMn2+Fe3+2(PO4)2(OH)2·8H2O121750270
Ludlamite  (*)NoneFe2+3(PO4)2·4H2O121750266
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O234.8228.83217502,217508,217510388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O234.8228.81217508443
Microcline  (*)FeldsparK(AlSi3O8)234.8228.825217493,217494,217495,217496,217497,217498,217499,217500,217501,217502,217503,217504,217505,217506,217507,217508,217509,217510,217511,217512,217513,217514,217516,217517,2175194924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O234.8228.81217508129
Montebrasite  (*)NoneLiAl(PO4)(OH)1217502200
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O234.8228.82217502,2175081508
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2234.8228.824217493,217494,217495,217496,217497,217498,217499,217500,217501,217502,217503,217504,217505,217506,217507,217508,217509,217510,217511,217512,217513,217514,217517,21751917380
Opal  (*)AmorphousSiO2·nH2O234.8228.812175082994
Phenakite  (*)PhenakiteBe2(SiO4)234.8228.81217508326
Phosphosiderite  (*)PhosphosideriteFe3+(PO4)·2H2O234.8228.81217508182
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O1217494182
Pyrite  (*)PyriteFeS2234.8228.84217494,217502,217508,21751039462
Pyrrhotite  (*)NickelineFe7S8234.8228.83217502,217508,2175109056
Quartz  (*)QuartzSiO2234.8228.826217493,217494,217495,217496,217497,217498,217499,217500,217501,217502,217503,217504,217505,217506,217507,217508,217509,217510,217511,217512,217513,217514,217516,217517,217518,21751961156
Rhodochrosite  (*)CalciteMn(CO3)234.8228.812175081711
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)234.8228.83217494,217498,2175082705
Siderite  (*)CalciteFe(CO3)234.8228.82217502,2175086417
Sillimanite  (*)Not in a structural groupAl2SiO512175161516
Sphalerite  (*)SphaleriteZnS234.8228.82217502,21750821482
Stewartite  (*)StewartiteMn2+Fe3+2(PO4)2(OH)2·8H2O121750248
Strunzite  (*)StrunziteMn2+Fe3+2(PO4)2(OH)2·6H2O234.8228.82217502,21750898
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O234.8228.81217508433
Topaz  (*)TopazAl2SiO4F2234.8228.82217508,2175131476
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O234.8228.812175081059
Triphylite  (*)OlivineLiFe2+(PO4)1217502313
Triplite  (*)TripliteMn2+2(PO4)F234.8228.82217499,217508233
Uraninite  (*)FluoriteUO2234.8228.82217502,2175082718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O234.8228.81217508890
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O234.8228.82217502,217508636
Zircon  (*)ZirconZr(SiO4)234.8228.83217502,217508,2175165251


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-0195234.8228.8231.8 ± 3.0Ar-ArAge of pegmatitemuscovite10ADw501b  Muscovite  3782Lord Hill Quarry (Lord Hill Mine), Stoneham, Oxford Co., Maine, USALord HillBradley et al. (2016)10.3749/canmin.1600035CM54_945 

SampleSource LocalityReference URL
R050348Lord Hill Quarry (Lord Hill Mine), Stoneham, Oxford Co., Maine, USAhttps://rruff.info/R050348

All locality data graciously provided by mindat.org

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