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:
Otish Mts, Baie-James, Nord-du-Québec, Québec, Canada

Oldest recorded age at locality: 306
Youngest recorded age at locality: 306

mindat Locality ID: 203516
mindat URL: http://www.mindat.org/loc-203516.html

Tectonic Settings:

Total number of sublocalities beneath "Otish Mts, Baie-James, Nord-du-Québec, Québec, Canada": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Lynx Kimberlite Dykes Complex
Matoush Uranium Deposit
Otish Mountains U Deposit
Renard Kimberlite Swarm

Latitude: 52°6'15"N
Longitude: 71°31'30"W
Decimal Degree (lat, lon): 52.104166666667,-71.525
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 Au B Ba Bi C Ca Ce Cr Cu F Fe H K Mg Mn Mo Na O P Pb S Se Si Te Ti U V W Y Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllaniteArsenicBaryteBournoniteBranneriteBruciteCalciteChalcopyriteClayClinozoisite
CopperCorundumCovelliteDescloiziteDiamondDigeniteEpidoteFeldsparFluoriteFritzscheite
MarcasiteMeneghiniteMicaMolybdeniteMonaziteNonePerovskitePhosphuranylitePyritePyroxene
QuartzRaspiteRocksaltRutileSchoepiteSpinelTetradymiteTourmalineWatkinsoniteZircon

54 IMA Minerals at location:
Aikinite  (*)Albite  (*)Allanite-(Ce)  (*)Baryte  (*)Bismuth  (*)
Brannerite  (*)Brucite  (*)Calcite  (*)Chalcopyrite  (*)Chromium-dravite  (*)
Chromphyllite  (*)Clausthalite  (*)Coffinite  (*)Covellite  (*)Dewindtite  (*)
Diamond  (*)Digenite  (*)Diopside  (*)Dolomite  (*)Dravite  (*)
Epidote  (*)Eskolaite  (*)Fluorite  (*)Fourmarierite  (*)Francevillite  (*)
Galena  (*)Gold  (*)Grimaldiite  (*)Hematite  (*)Kasolite  (*)
Magnetite  (*)Marcasite  (*)Microcline  (*)Molybdenite  (*)Monazite-(Ce)  (*)
Mottramite  (*)Muscovite  (*)Omphacite  (*)Perovskite  (*)Poubaite  (*)
Pyrite  (*)Pyrobelonite  (*)Quartz  (*)Raspite  (*)Rutile  (*)
Siderite  (*)Skippenite  (*)Součekite  (*)Uraninite  (*)Uranophane-α  (*)
Watkinsonite  (*)Wittichenite  (*)Xenotime-(Y)  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aikinite  (*)MeneghiniteCuPbBiS3306306134792315
Albite  (*)FeldsparNa(AlSi3O8)3063061347928803
Allanite-(Ce)  (*)Allanite EpidoteCaCe(Al2Fe2+)[Si2O7][SiO4]O(OH)306306134792706
Baryte  (*)BaryteBa(SO4)30630613479211547
Bismuth  (*)ArsenicBi3063061347921966
Brannerite  (*)BranneriteUTi2O6306306134792248
Brucite  (*)BruciteMg(OH)2306306134792462
Calcite  (*)CalciteCa(CO3)306306234791,3479227770
Chalcopyrite  (*)ChalcopyriteCuFeS230630613479227198
Chromium-dravite  (*)TourmalineNaMg3Cr6(Si6O18)(BO3)3(OH)3(OH)1347916
Chromphyllite  (*)MicaKCr2(AlSi3O10)(OH)21347916
Clausthalite  (*)RocksaltPbSe306306134792281
Coffinite  (*)ZirconU(SiO4)·nH2O306306134792566
Covellite  (*)CovelliteCuS3063061347924165
Dewindtite  (*)PhosphuranyliteH2Pb3(UO2)6O4(PO4)4·12H2O30630613479282
Diamond  (*)DiamondC234790,34793697
Digenite  (*)DigeniteCu1.8S3063061347921027
Diopside  (*)PyroxeneCaMgSi2O61347904135
Dolomite  (*)NoneCaMg(CO3)23063061347929895
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)134791648
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)3063061347928173
Eskolaite  (*)CorundumCr2O313479130
Fluorite  (*)FluoriteCaF23063061347929617
Fourmarierite  (*)SchoepitePb1-xO3-2x(UO2)4(OH)4+2x·4H2O30630613479261
Francevillite  (*)FritzscheiteBa(UO2)2(VO4)2·5H2O30630613479243
Galena  (*)RocksaltPbS30630613479224243
Gold  (*)CopperAu30630613479230554
Grimaldiite  (*)NoneCrO(OH)1347915
Hematite  (*)CorundumFe2O3306306234791,3479214640
Kasolite  (*)NonePb(UO2)(SiO4)·H2O306306134792198
Magnetite  (*)SpinelFe2+Fe3+2O4306306234791,3479214899
Marcasite  (*)MarcasiteFeS23063061347925674
Microcline  (*)FeldsparK(AlSi3O8)1347914924
Molybdenite  (*)MolybdeniteMoS23063061347925800
Monazite-(Ce)  (*)MonaziteCe(PO4)306306134792945
Mottramite  (*)DescloizitePbCu(VO4)(OH)306306134792362
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)213479117380
Omphacite  (*)Pyroxene(Ca,Na)(Mg,Fe,Al)Si2O6134790229
Perovskite  (*)PerovskiteCaTiO3234790,34793495
Poubaite  (*)TetradymitePbBi2(Se,Te,S)43063061347926
Pyrite  (*)PyriteFeS230630613479239462
Pyrobelonite  (*)DescloizitePbMn2+VO4(OH)30630613479221
Quartz  (*)QuartzSiO2306306234791,3479261156
Raspite  (*)RaspitePb(WO4)30630613479226
Rutile  (*)RutileTiO23063061347925614
Siderite  (*)CalciteFe(CO3)3063061347926417
Skippenite  (*)TetradymiteBi2Se2Te3063061347926
Součekite  (*)BournoniteCuPbBi(S,Se)33063061347926
Uraninite  (*)FluoriteUO2306306234791,347922718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O306306234791,34792890
Watkinsonite  (*)WatkinsonitePbCu2Bi4(Se,S)83063061347925
Wittichenite  (*)NoneCu3BiS3306306134792297
Xenotime-(Y)  (*)ZirconY(PO4)306306134792939
Zircon  (*)ZirconZr(SiO4)3063061347925251


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000991Uranium vein-type deposits located in the Otish Mountains basin (Quebec) are associated with strongly albitized doleritic dykes and sills. Two periods of mineralization were recognized. The first, contemporaneous with the albitization, consists of brannerite and uraninite. The second, separated from the previous by tectonic movements, is characterized by carbonate gangue (dolomite), and a complex association of selenides, tellurides and sulfides including: skippenite, watkinsonite, poubaite, soucekite, clausthalite, aikinite, wittichenite, molybdenite, pyrite, chalcopyrite, galena, digenite, covellite, electrum, native bismuth, and several unidentified bismuth selenides-tellurides.


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
Giersdorf_00000991306306306 The second cycle, which is weaker, produced pitchblende and coffinite mineralization in a calcite gangue. Its age is approximately 306 Ma and seems to correspondto the mineralizatione vent well known in other areas, as for example in the Athabasca basin    Calcite, Coffinite, Galena, Hematite, Marcasite, PyriteU16069Otish Mountains U Deposit, Otish Mts, Baie-James, Nord-du-Québec, Québec, CanadaOtish Mountains U DepositJohan et al. (1987) CM25_625The age for the second mineralization event of the Otish Mountains which corresponds well to other nearby areas.

SampleSource LocalityReference URL

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