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:
Barbara Lake Area, Thunder Bay District, Ontario, Canada

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

mindat Locality ID: 257248
mindat URL: http://www.mindat.org/loc-257248.html

Tectonic Settings:

Total number of sublocalities beneath "Barbara Lake Area, Thunder Bay District, Ontario, Canada": 10
Total number of bottom-level sublocalities: 6

Number of Child Localities: 2
Child Localities:
Georgia Lake Spodumene Pegmatites
Salo Occurrence

Latitude: 49°20'13"N
Longitude: 87°58'52"W
Decimal Degree (lat, lon): 49.336944444444,-87.981111111111
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: 

Structural Groups for minerals in this locality: 
AlluauditeApatiteBerylClayFeldsparGarnetMicaMolybdeniteNoneOlivine
PyroxeneQuartzRutileStauroliteTalcTourmaline

17 IMA Minerals at location:
Albite  (*)Alluaudite  (*)Almandine  (*)Amblygonite  (*)Beryl  (*)
Bityite  (*)Cassiterite  (*)Fluorapatite  (*)Molybdenite  (*)Muscovite  (*)
Purpurite  (*)Quartz  (*)Schorl  (*)Spessartine  (*)Spodumene  (*)
Staurolite  (*)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)27202720233277,332858803
Alluaudite  (*)Alluaudite   NaMnFe3+2(PO4)32720272013327794
Almandine  (*)GarnetFe2+3Al2(SiO4)31332792353
Amblygonite  (*)NoneLiAl(PO4)F27202720133277244
Beryl  (*)BerylBe3Al2Si6O18233277,332814286
Bityite  (*)Mica ClayCaLiAl2(Si2BeAl)O10(OH)22720272013327731
Cassiterite  (*)RutileSnO2272027201332775171
Fluorapatite  (*)ApatiteCa5(PO4)3F1332812740
Molybdenite  (*)MolybdeniteMoS2272027201332775800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22720272013327717380
Purpurite  (*)OlivineMn3+(PO4)2720272013327780
Quartz  (*)QuartzSiO227202720233277,3328661156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)1332812705
Spessartine  (*)GarnetMn2+3Al2(SiO4)327202720333279,33282,332851214
Spodumene  (*)PyroxeneLiAlSi2O627202720333277,33285,33286688
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)133286978
Talc  (*)Clay TalcMg3Si4O10(OH)2272027201332773337


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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