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:
Root Lake Area, Root Lake Pegmatite Group, Kenora District, Ontario, Canada

Oldest recorded age at locality: 2799
Youngest recorded age at locality: 2550

mindat Locality ID: 255699
mindat URL: http://www.mindat.org/loc-255699.html

Tectonic Settings:

Total number of sublocalities beneath "Root Lake Area, Root Lake Pegmatite Group, Kenora District, Ontario, Canada": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Consolidated Morrison Pegmatite
McCombe Pegmatites

Latitude: 50°56'7"N
Longitude: 91°41'50"W
Decimal Degree (lat, lon): 50.935277777778,-91.697222222222

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 Ba Be C Ca F Fe H K Li Mg Mn Na Nb O P Si Ta Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleApatiteBerylCalciteClinozoisiteColumbiteEpidoteGarnetMicaMilarite
NoneNot in a structural groupPyroxeneTitaniteTourmaline

19 IMA Minerals at location:
Almandine  (*)Armenite  (*)Beryl  (*)Calcite  (*)Columbite-(Mn)  (*)
Elbaite  (*)Epidote  (*)Fluor-elbaite  (*)Fluor-liddicoatite  (*)Fluorapatite  (*)
Foitite  (*)Holmquistite  (*)Petalite  (*)Schorl  (*)Siderophyllite  (*)
Spessartine  (*)Spodumene  (*)Tantalite-(Mn)  (*)Titanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)3279925501324052353
Armenite  (*)MilariteBaCa2(Al6Si9)O30·2H2O2799255013240523
Beryl  (*)BerylBe3Al2Si6O18279925501324054286
Calcite  (*)CalciteCa(CO3)2799255013240527770
Columbite-(Mn)  (*)ColumbiteMn2+Nb2O627992550232404,32405289
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)27992550232404,32405520
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)279925501324058173
Fluor-elbaite  (*)TourmalineNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F2799255013240531
Fluor-liddicoatite  (*)TourmalineCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F2799255013240512
Fluorapatite  (*)ApatiteCa5(PO4)3F279925501324052740
Foitite  (*)Tourmaline   (Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)2799255013240575
Holmquistite  (*)Amphibole   Li2(Mg3Al2)Si8O22(OH)22799255013240542
Petalite  (*)Not in a structural groupLiAlSi4O1027992550132405124
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)27992550232404,324052705
Siderophyllite  (*)MicaKFe2+2Al(Si2Al2)O10(OH)22799255013240592
Spessartine  (*)GarnetMn2+3Al2(SiO4)327992550232404,324051214
Spodumene  (*)PyroxeneLiAlSi2O627992550132405688
Tantalite-(Mn)  (*)ColumbiteMn2+Ta2O627992550132405211
Titanite  (*)TitaniteCaTi(SiO4)O279925501324054899



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-0296279925502799-2550 Age of pegmatite   Yes  228550Root Lake Pegmatite Group, Kenora District, Ontario, CanadaSuperior ProvinceČerný (1990)10.1007/BF01830621GR79_183 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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