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:
York, York Co., Maine, USA

Oldest recorded age at locality: 228
Youngest recorded age at locality: 116

mindat Locality ID: 20934
mindat URL: http://www.mindat.org/loc-20934.html

Tectonic Settings:

Total number of sublocalities beneath "York, York Co., Maine, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Bald Head Cliff
Cape Neddick
Cape Neddick River Locality
Mount Agamenticus
Mount Agamenticus Alkaline Syenite

Latitude: 43°13'18"N
Longitude: 70°38'13"W
Decimal Degree (lat, lon): 43.221666666667,-70.636944444444
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 C Ca F Fe H K Mg Na O P S Si Sn Ti Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleApatiteBerylCalciteChloriteClayClinozoisiteEpidoteFeldsparFluorite
MicaNickelineNoneOlivinePyroxeneQuartzRutileSapphirineSerpentineSpinel
TitaniteZircon

33 IMA Minerals at location:
Aegirine  (*)Aegirine-augite  (*)Aenigmatite  (*)Albite  (*)Annite  (*)
Anorthite  (*)Antigorite  (*)Arfvedsonite  (*)Augite  (*)Calcite  (*)
Cassiterite  (*)Clinochlore  (*)Cordierite  (*)Diopside  (*)Enstatite  (*)
Epidote  (*)Fayalite  (*)Ferro-hornblende  (*)Fluorapatite  (*)Fluorite  (*)
Forsterite  (*)Hercynite  (*)Magnetite  (*)Microcline  (*)Muscovite  (*)
Orthoclase  (*)Pyrrhotite  (*)Quartz  (*)Riebeckite  (*)Rutile  (*)
Titanite  (*)Zircon  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O6228219.212218288,2182891022
Aegirine-augite  (*)Pyroxene(Ca,Na)(Fe3+,Mg,Fe2+)Si2O6228219.212218288,218289286
Aenigmatite  (*)SapphirineNa4[Fe2+10Ti2]O4[Si12O36]225.21219.211218288133
Albite  (*)FeldsparNa(AlSi3O8)225.211162218286,2182888803
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)2225.21219.211218288356
Anorthite  (*)FeldsparCa(Al2Si2O8)2281163218286,218287,2182891036
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)41161161218286708
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)2228219.212218288,218289295
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O611611612182862060
Calcite  (*)CalciteCa(CO3)116116121828627770
Cassiterite  (*)RutileSnO2225.21219.2112182885171
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)811611612182861756
Cordierite  (*)BerylMg2Al4Si5O1811611612182861008
Diopside  (*)PyroxeneCaMgSi2O611611612182864135
Enstatite  (*)PyroxeneMg2Si2O61161161218286944
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11611612182868173
Fayalite  (*)OlivineFe2+2(SiO4)228219.212218288,218289371
Ferro-hornblende  (*)Amphibole   Ca2(Fe2+4Al)(Si7Al)O22(OH)22282281218289271
Fluorapatite  (*)ApatiteCa5(PO4)3F225.211162218286,2182882740
Fluorite  (*)FluoriteCaF2225.21219.2112182889617
Forsterite  (*)OlivineMg2(SiO4)11611612182861188
Hercynite  (*)SpinelFe2+Al2O42282281218289407
Magnetite  (*)SpinelFe2+Fe3+2O4225.211162218286,21828814899
Microcline  (*)FeldsparK(AlSi3O8)225.21219.2112182884924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2116116121828617380
Orthoclase  (*)FeldsparK(AlSi3O8)225.211162218286,2182882349
Pyrrhotite  (*)NickelineFe7S811611612182869056
Quartz  (*)QuartzSiO2225.211162218286,21828861156
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)2228219.212218288,218289375
Rutile  (*)RutileTiO2225.211162218286,2182885614
Titanite  (*)TitaniteCaTi(SiO4)O225.21219.2112182884899
Zircon  (*)ZirconZr(SiO4)225.21219.2112182885251
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)225.21219.2112182881025


5 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_257-00025116116116        192750Cape Neddick, York, York Co., Maine, USACape NeddickZartman (1977)10.1146/annurev.ea.05.050177.001353AREPS5_257 
USGS-Rb-Sr-03274225.21219.21222.21±3Rb-Srage of intrusionwhole rock     237445Mount Agamenticus, York, York Co., Maine, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-03275225.21219.21222.21±3Rb-Srage of intrusionwhole rock     237445Mount Agamenticus, York, York Co., Maine, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-03276225.21219.21222.21±3Rb-Srage of intrusionwhole rock     237445Mount Agamenticus, York, York Co., Maine, USA USGS-Rb-Sr USGS-Rb-Sr 
AREPS5_257-00004228228228        192749Mount Agamenticus Alkaline Syenite, York, York Co., Maine, USAAgamenticusZartman (1977)10.1146/annurev.ea.05.050177.001353AREPS5_257 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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