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:
Standish, Cumberland Co., Maine, USA

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

mindat Locality ID: 22901
mindat URL: http://www.mindat.org/loc-22901.html

Tectonic Settings:

Total number of sublocalities beneath "Standish, Cumberland Co., Maine, USA": 9
Total number of bottom-level sublocalities: 8

Number of Child Localities: 7
Child Localities:
Alfred Whitney Farm Locality
B.B. Whitney Farm Locality
Oak Hill Area
Oak Hill Columbite Locality
Oak Hill Road Cuts
Route 114 Road Cut
Sebago Lake Village Lime-Marble Quarries

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 Be C Ca F Fe H K Li Mg Na Nb O P S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AndalusiteApatiteArsenopyriteBerylCalciteClayColumbiteCorundumDiasporeFeldspar
GarnetLöllingiteMicaNickelineNoneNot in a structural groupOlivineQuartzTourmaline

25 IMA Minerals at location:
Albite  (*)Almandine  (*)Andalusite  (*)Arsenopyrite  (*)Beryl  (*)
Calcite  (*)Chrysoberyl  (*)Columbite-(Fe)  (*)Fluorapatite  (*)Goethite  (*)
Graphite  (*)Hematite  (*)Heterosite  (*)Ilmenite  (*)Kyanite  (*)
Löllingite  (*)Microcline  (*)Muscovite  (*)Phlogopite  (*)Pyrrhotite  (*)
Quartz  (*)Schorl  (*)Scorodite  (*)Sillimanite  (*)Triphylite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)2652632216884,2168858803
Almandine  (*)GarnetFe2+3Al2(SiO4)326526312168852353
Andalusite  (*)AndalusiteAl2SiO52652633216881,216882,2168831310
Arsenopyrite  (*)ArsenopyriteFeAsS26526312168859052
Beryl  (*)BerylBe3Al2Si6O1826526312168854286
Calcite  (*)CalciteCa(CO3)265263121688727770
Chrysoberyl  (*)OlivineBeAl2O42652631216886321
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O62652631216884518
Fluorapatite  (*)ApatiteCa5(PO4)3F2652632216885,2168862740
Goethite  (*)DiasporeFeO(OH)26526312168837437
Graphite  (*)NoneC26526312168832812
Hematite  (*)CorundumFe2O3265263121688314640
Heterosite  (*)OlivineFe3+(PO4)2652631216885204
Ilmenite  (*)CorundumFe2+Ti4+O326526312168835433
Kyanite  (*)Not in a structural groupAl2OSiO426526312168831507
Löllingite  (*)LöllingiteFeAs22652631216885762
Microcline  (*)FeldsparK(AlSi3O8)26526312168844924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22652636216881,216882,216883,216884,216885,21688617380
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)226526312168872273
Pyrrhotite  (*)NickelineFe7S82652632216881,2168829056
Quartz  (*)QuartzSiO22652635216881,216882,216883,216884,21688561156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)26526312168852705
Scorodite  (*)NoneFe3+(AsO4)·2H2O26526312168851153
Sillimanite  (*)Not in a structural groupAl2SiO52652632216882,2168831516
Triphylite  (*)OlivineLiFe2+(PO4)2652631216885313



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


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