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:
Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada

Oldest recorded age at locality: 483
Youngest recorded age at locality: 477

mindat Locality ID: 7587
mindat URL: http://www.mindat.org/loc-7587.html

Tectonic Settings:

Total number of sublocalities beneath "Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada": 22
Total number of bottom-level sublocalities: 19

Number of Child Localities: 10
Child Localities:
Bell Mine
Black Lake
Hall Chrome Pit (Hall Mine; Thetford Quarry)
Johnson Mine
King Beaver Mine (Jacob Mine; Beaver-1 Mine; Beaver-2 Mine)
King Mine
Lemelin Mine (Gray Mine)
Pontbriand
Robertsonville
Stewart Mine

Latitude: 46°4'47"N
Longitude: 71°17'29"W
Decimal Degree (lat, lon): 46.079722222222,-71.291388888889

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 C Ca Cr Cu F Fe H Hg Ir K Mg Mo Na Ni O Os Pd Pt Rh Ru S Si Sn Ti Zn Zr 

Elements from minerals reported directly at this locality: Al Ca Fe H Hg Mg Na O Pd Rh S Si 

Structural Groups for minerals in this locality: 
AmphiboleAragoniteArtiniteAuricuprideBowieiteBruciteCalciteChloriteClayClinozoisite
CopperEpidoteFeldsparGarnetHydrotalciteMolybdeniteNatroliteNoneNot in a structural groupPectolite
PerovskitePotaritePrehnitePyritePyroxeneQuartzSerpentineSmectite-vermiculiteSpinelTalc
ThomsoniteTitaniteVesuvianiteWollastoniteZircon

60 IMA Minerals at location:
Actinolite  (*)Albite  (*)Amesite  (*)Anatase  (*)Andradite  (*)
Antigorite  (*)Aragonite  (*)Artinite  (*)Awaruite  (*)Bowieite  (*)
Braggite  (*)Brucite  (*)Cabriite  (*)Calcite  (*)Chromite  (*)
Chrysotile  (*)Clinochlore  (*)Clinozoisite  (*)Cooperite  (*)Cuproiridsite  (*)
Cuprorhodsite  (*)Diopside  (*)Dolomite  (*)Enstatite  (*)Epidote  (*)
Erlichmanite  (*)Grossular  (*)Heazlewoodite  (*)Hemimorphite  (*)Hydrotalcite  (*)
Iridium  (*)Isoferroplatinum  (*)Laurite  (*)Lizardite  (*)Magnetite  (*)
Malanite  (*)Mesolite  (*)Miassite  (*)Microcline  (*)Molybdenite  (*)
Montmorillonite  (*)Natrolite  (*)Osmium  (*)Pectolite  (*)Potarite  (*)
Prehnite  (*)Pyrite  (*)Quartz  (*)Saponite  (*)Scolecite  (*)
Stevensite  (*)Talc  (*)Tetraferroplatinum  (*)Thomsonite-Ca  (*)Titanite  (*)
Vermiculite  (*)Vesuvianite  (*)Wollastonite  (*)Zircon  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)21343953419
Albite  (*)FeldsparNa(AlSi3O8)334393,34395,344098803
Amesite  (*)Clay SerpentineMg2Al(AlSiO5)(OH)413439574
Anatase  (*)Not in a structural groupTiO21344102162
Andradite  (*)GarnetCa3Fe3+2(SiO4)31343951534
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)4534393,34395,34405,34409,34410708
Aragonite  (*)AragoniteCa(CO3)483477334395,34400,344093250
Artinite  (*)ArtiniteMg2(CO3)(OH)2·3H2O48347713440075
Awaruite  (*)Auricupride PerovskiteNi3Fe534393,34395,34401,34403,34405166
Bowieite  (*)BowieiteRh2S3483477234403,3440733
Braggite  (*)NonePdPt3S4134403101
Brucite  (*)BruciteMg(OH)2483477134400462
Cabriite  (*)NonePd2CuSn13440112
Calcite  (*)CalciteCa(CO3)734395,34396,34404,34405,34406,34409,3441027770
Chromite  (*)SpinelFe2+Cr2O4483477734396,34400,34402,34403,34405,34407,344143902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)44834771434393,34395,34396,34397,34398,34399,34400,34404,34405,34406,34409,34410,34411,34413951
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)84834771344001756
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)1343951025
Cooperite  (*)NonePtS483477134407124
Cuproiridsite  (*)SpinelCu(Ir3+Ir4+)S413440331
Cuprorhodsite  (*)Spinel(Cu1+0.5Fe3+0.5)Rh3+2S413440334
Diopside  (*)PyroxeneCaMgSi2O6483477834393,34395,34396,34400,34404,34405,34406,344094135
Dolomite  (*)NoneCaMg(CO3)21344099895
Enstatite  (*)PyroxeneMg2Si2O6134395944
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)4834771344008173
Erlichmanite  (*)PyriteOsS2134403110
Grossular  (*)GarnetCa3Al2(SiO4)3483477734393,34395,34400,34403,34404,34405,344091544
Heazlewoodite  (*)NoneNi3S2434396,34403,34405,34410205
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O1343931689
Hydrotalcite  (*)HydrotalciteMg6Al2CO3(OH)16(H2O)4483477234395,3440087
Iridium  (*)CopperIr134403162
Isoferroplatinum  (*)Auricupride PerovskitePt3Fe483477334401,34403,34407128
Laurite  (*)PyriteRuS2483477334401,34403,34407226
Lizardite  (*)Serpentine ClayMg3Si2O5(OH)4134395359
Magnetite  (*)SpinelFe2+Fe3+2O4483477934393,34395,34396,34400,34403,34404,34405,34409,3441014899
Malanite  (*)SpinelCu1+(Ir3+Pt4+)S448347713439435
Mesolite  (*)NatroliteNa2Ca2(Si9Al6)O30·8H2O134395425
Miassite  (*)NoneRh17S15483477010
Microcline  (*)FeldsparK(AlSi3O8)234393,343954924
Molybdenite  (*)MolybdeniteMoS21343935800
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O1343951508
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O234395,344041236
Osmium  (*)NoneOs134403169
Pectolite  (*)PectoliteNaCa2Si3O8(OH)534393,34395,34404,34406,34409363
Potarite  (*)PotaritePdHg483477025
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)2634393,34395,34404,34405,34406,344091898
Pyrite  (*)PyriteFeS213440939462
Quartz  (*)QuartzSiO2534393,34395,34409,34410,3441161156
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O4834770301
Scolecite  (*)NatroliteCa(Si3Al2)O10·3H2O434395,34404,34405,34406390
Stevensite  (*)Clay(Ca,Na)xMg3-ySi4O10(OH)213440357
Talc  (*)Clay TalcMg3Si4O10(OH)2234410,344133337
Tetraferroplatinum  (*)PotaritePtFe13440366
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O134395452
Titanite  (*)TitaniteCaTi(SiO4)O1343954899
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O134395652
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10483477534395,34396,34400,34403,344091395
Wollastonite  (*)WollastoniteCaSiO31343951247
Zircon  (*)ZirconZr(SiO4)1343955251
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)483477334393,34400,344041025



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
podchrome-00516483477Lower Ordovician (477-483 Ma)       Cr145315Union Mine (Southwark Mine), Black Lake, Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, CanadaStandard Asbestos CompanyMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00523483477Lower Ordovician (477-483 Ma)       Cr145317Lemelin Mine (Gray Mine), Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, CanadaLemelinMoiser et al. (2012) USGSSIR2012_5157 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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