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:
Georgia Lake Spodumene Pegmatites, Barbara Lake Area, Thunder Bay District, Ontario, Canada

Oldest recorded age at locality: 2720
Youngest recorded age at locality: 2720

mindat Locality ID: 261575
mindat URL: http://www.mindat.org/loc-261575.html

Tectonic Settings:

Total number of sublocalities beneath "Georgia Lake Spodumene Pegmatites, Barbara Lake Area, Thunder Bay District, Ontario, Canada": 8
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Cosgrave Lake Pegmatite Group
Gathering Lake Pegmatite Group
Georgia Lake Pegmatite Group
Lake Jean Pegmatite Group
Postagoni Lake Pegmatite Group

Latitude: 49°22'24"N
Longitude: 88°1'9"W
Decimal Degree (lat, lon): 49.373333333333,-88.019166666667
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 Ca F Fe H K Li Mg Mn Mo Na O P S Si Sn 

Elements from minerals reported directly at this locality: Al Be Ca F Fe H K Li Mg Mn Mo Na O P S Si Sn 

Structural Groups for minerals in this locality: 
AlluauditeApatiteBerylClayFeldsparGarnetMicaMolybdeniteNoneOlivine
PyroxeneQuartzRutileTalcTourmaline

16 IMA Minerals at location:
Albite  (*)Alluaudite  (*)Almandine  (*)Amblygonite  (*)Beryl  (*)
Bityite  (*)Cassiterite  (*)Fluorapatite  (*)Molybdenite  (*)Muscovite  (*)
Purpurite  (*)Quartz  (*)Schorl  (*)Spessartine  (*)Spodumene  (*)
Talc  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)272027201332858803
Alluaudite  (*)Alluaudite   NaMnFe3+2(PO4)327202720094
Almandine  (*)GarnetFe2+3Al2(SiO4)31332792353
Amblygonite  (*)NoneLiAl(PO4)F272027200244
Beryl  (*)BerylBe3Al2Si6O181332814286
Bityite  (*)Mica ClayCaLiAl2(Si2BeAl)O10(OH)227202720031
Cassiterite  (*)RutileSnO22720272005171
Fluorapatite  (*)ApatiteCa5(PO4)3F1332812740
Molybdenite  (*)MolybdeniteMoS22720272005800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)227202720017380
Purpurite  (*)OlivineMn3+(PO4)27202720080
Quartz  (*)QuartzSiO227202720061156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)1332812705
Spessartine  (*)GarnetMn2+3Al2(SiO4)327202720333279,33282,332851214
Spodumene  (*)PyroxeneLiAlSi2O627202720133285688
Talc  (*)Clay TalcMg3Si4O10(OH)22720272003337


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
vms-0025827202720Archean       S244259Nama Creek Lithium Mine, Kilkenny Township, Postagoni Lake Pegmatite Group, Georgia Lake Spodumene Pegmatites, Barbara Lake Area, Thunder Bay District, Ontario, CanadaNama CreekMoiser et al. (2009) USGSOFR2009_1034 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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