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:
Yellowknife Pegmatite Field, Northwest Territories, Canada

Oldest recorded age at locality: 2611
Youngest recorded age at locality: 2594

mindat Locality ID: 264908
mindat URL: http://www.mindat.org/loc-264908.html

Tectonic Settings:

Total number of sublocalities beneath "Yellowknife Pegmatite Field, Northwest Territories, Canada": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Blatchford Lake
Hook Point
Moose II Pegmatite (ELK; Beck; DeStaffany)
Peg Tantalum
Pegmatite Between Upper Ross Lake And Redout Lake
Redout Lake Pegmatite
Van Dyke

Latitude: 62°12'37"N
Longitude: 112°50'37"W
Decimal Degree (lat, lon): 62.210277777778,-112.84361111111
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 B Be C Ca Cu F Fe H K Li Mg Mn Na Nb O P S Si Sn Ta U Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AlluauditeAluniteAmphiboleApatiteBerylCalciteChalcopyriteClayColumbiteFeldspar
FluoriteGarnetGraftoniteLazuliteMicaNoneNot in a structural groupOlivinePyritePyroxene
QuartzRutileSerpentineSphaleriteTapioliteTourmalineZircon

32 IMA Minerals at location:
Aegirine  (*)Albite  (*)Alluaudite  (*)Almandine  (*)Amblygonite  (*)
Berthierine  (*)Beryl  (*)Beusite  (*)Beusite-(Ca)  (*)Calcite  (*)
Cassiterite  (*)Chalcopyrite  (*)Columbite-(Fe)  (*)Crandallite  (*)Fluorapatite  (*)
Lazulite  (*)Lithiophilite  (*)Microcline  (*)Montebrasite  (*)Muscovite  (*)
Petalite  (*)Pyrite  (*)Quartz  (*)Riebeckite  (*)Schorl  (*)
Sphalerite  (*)Spodumene  (*)Tantalite-(Fe)  (*)Tapiolite-(Fe)  (*)Triphylite  (*)
Uraninite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O6259825941311201022
Albite  (*)FeldsparNa(AlSi3O8)25982594331119,31121,311248803
Alluaudite  (*)Alluaudite   NaMnFe3+2(PO4)32598259413112594
Almandine  (*)GarnetFe2+3Al2(SiO4)3259825941311242353
Amblygonite  (*)NoneLiAl(PO4)F25982594231121,31122244
Berthierine  (*)Clay Serpentine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)42598259413112459
Beryl  (*)BerylBe3Al2Si6O1825982594431121,31122,31124,311254286
Beusite  (*)GraftoniteMn2+Mn2+2(PO4)22598259413112439
Beusite-(Ca)  (*)GraftoniteCaMn2+2(PO4)2259825941311231
Calcite  (*)CalciteCa(CO3)2598259413112427770
Cassiterite  (*)RutileSnO225982594231121,311255171
Chalcopyrite  (*)ChalcopyriteCuFeS22598259413112127198
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O625982594231121,31124518
Crandallite  (*)AluniteCaAl3(PO4)(PO3OH)(OH)625982594131121310
Fluorapatite  (*)ApatiteCa5(PO4)3F259825941311212740
Lazulite  (*)LazuliteMgAl2(PO4)2(OH)225982594131122232
Lithiophilite  (*)OlivineLiMn2+(PO4)25982594231122,31125155
Microcline  (*)FeldsparK(AlSi3O8)25982594331119,31121,311244924
Montebrasite  (*)NoneLiAl(PO4)(OH)25982594131121200
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)225982594431119,31121,31122,3112417380
Petalite  (*)Not in a structural groupLiAlSi4O1025982594131121124
Pyrite  (*)PyriteFeS225982594231121,3112439462
Quartz  (*)QuartzSiO225982594631119,31120,31121,31122,31124,3112561156
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)225982594131120375
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)259825941311212705
Sphalerite  (*)SphaleriteZnS2598259413112121482
Spodumene  (*)PyroxeneLiAlSi2O625982594431119,31121,31122,31125688
Tantalite-(Fe)  (*)ColumbiteFe2+Ta2O62598259413112199
Tapiolite-(Fe)  (*)TapioliteFe2+Ta2O62598259413112488
Triphylite  (*)OlivineLiFe2+(PO4)25982594231124,31125313
Uraninite  (*)FluoriteUO2259825941311212718
Zircon  (*)ZirconZr(SiO4)259825941311215251


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Jen_0000015Northwestern Canadian Shield


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
Jen_0000015261126012606±5        264908Yellowknife Pegmatite Field, Northwest Territories, CanadaYellowknife Pegmatite fieldČerný (1991)10.1016/0301-9268(91)90111-MPR51_429accreting terranes vs. rifting and closure of back-arc basins
Kristen002503259825942596±2  monazite     517Peg Tantalum, Yellowknife Pegmatite Field, Northwest Territories, CanadaYellowknife-BeaulieuTkachev (2011)10, 1144/SP350,2GSLSP350_7 

SampleSource LocalityReference URL

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