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:
MacGregor Township, Thunder Bay District, Ontario, Canada


mindat Locality ID: 212915
mindat URL: http://www.mindat.org/loc-212915.html

Tectonic Settings:

Total number of sublocalities beneath "MacGregor Township, Thunder Bay District, Ontario, Canada": 10
Total number of bottom-level sublocalities: 10

Number of Child Localities: 10
Child Localities:
7Z Mine
Blende Lake Iron Occurrence
MacKenzie River Locality
McNamara Quarry
Mt Baldy Occurrence (David Galley Occurrence)
Pass Lake Road Quarry
Silver Harbour Mine (Beck Mine; Three A Mine; 3 A)
Thunder Bay Agate Mine
Thunder Bay Mine
Unnamed Prospect

Latitude: 48°31'43"N
Longitude: 89°'4"W
Decimal Degree (lat, lon): 48.528611111111,-89.001111111111
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: Ag Al Ba Bi C Ca Cu F Fe H K Mg Na O Pb S Si Ti Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAluniteAragoniteArsenicBaryteCalciteChalcopyriteClayCopperCorundum
DiasporeFluoriteGypsumGyroliteMalachiteNickelineNonePectolitePrehnitePyrite
QuartzRocksaltSphaleriteStilpnomelane

23 IMA Minerals at location:
Acanthite  (*)Aragonite  (*)Baryte  (*)Bismuth  (*)Calcite  (*)
Chalcopyrite  (*)Fluorite  (*)Galena  (*)Goethite  (*)Graphite  (*)
Gypsum  (*)Ilmenite  (*)Jarosite  (*)Malachite  (*)Pectolite  (*)
Prehnite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Silver  (*)
Sphalerite  (*)Stilpnomelane  (*)Tungusite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S333369,33375,333772793
Aragonite  (*)AragoniteCa(CO3)1333743250
Baryte  (*)BaryteBa(SO4)333369,33373,3337511547
Bismuth  (*)ArsenicBi1333781966
Calcite  (*)CalciteCa(CO3)333372,33375,3337727770
Chalcopyrite  (*)ChalcopyriteCuFeS2333369,33373,3337527198
Fluorite  (*)FluoriteCaF21333699617
Galena  (*)RocksaltPbS333369,33375,3337724243
Goethite  (*)DiasporeFeO(OH)1333727437
Graphite  (*)NoneC1333762812
Gypsum  (*)GypsumCa(SO4)·2H2O1333746890
Ilmenite  (*)CorundumFe2+Ti4+O31333725433
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)61333742228
Malachite  (*)MalachiteCu2(CO3)(OH)213337312537
Pectolite  (*)PectoliteNaCa2Si3O8(OH)133372363
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)21333721898
Pyrite  (*)PyriteFeS2533372,33373,33374,33375,3337739462
Pyrrhotite  (*)NickelineFe7S81333729056
Quartz  (*)QuartzSiO2733369,33371,33373,33375,33376,33377,3337861156
Silver  (*)CopperAg333369,33375,333775186
Sphalerite  (*)SphaleriteZnS233375,3337721482
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O133372456
Tungusite  (*)GyroliteCa14Fe2+9Si24O60(OH)221333727


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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