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Lac des Iles Complex, Lac des Iles Area, Thunder Bay District, Ontario, Canadai
Regional Level Types
Lac des Iles ComplexComplex
Lac des Iles AreaArea
Thunder Bay DistrictDistrict
OntarioProvince
CanadaCountry

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Latitude & Longitude (WGS84):
49° 10' North , 89° 37' West
Latitude & Longitude (decimal):
49.16667,-89.61667
GRN:
N33W43
Type:
Complex
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
13093
Long-form identifier:
mindat:1:2:13093:3
GUID (UUID V4):
0


Mafic-ultramafic intrusive complex with gabbro and pegmatite. Contains several PGE mineralizations.
This system comprises the easternmost extent of an~30-km-wide, ring-shaped array of variably hornblende-rich, mafc–ultramafc intrusions located in the Archean Superior Province. These include the Tib Lake, Demars Lake, Wakinoo Lake, Tomle Lake, Buck Lake, Taman Lake, and Dog River intrusions.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


39 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Braggite
Formula: PdPt3S4
ⓘ Cassiterite
Formula: SnO2
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Cobaltite
Formula: CoAsS
ⓘ Covellite
Formula: CuS
ⓘ Cubanite
Formula: CuFe2S3
ⓘ Galena
Formula: PbS
ⓘ Gersdorffite
Formula: NiAsS
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Isomertieite
Formula: Pd11Sb2As2
ⓘ Kotulskite
Formula: Pd(Te,Bi)2-x (x ≈ 0.4)
ⓘ Löllingite
Formula: FeAs2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Marcasite
Formula: FeS2
ⓘ Melonite
Formula: NiTe2
ⓘ Merenskyite
Formula: PdTe2
ⓘ Millerite
Formula: NiS
ⓘ Molybdenite
Formula: MoS2
ⓘ Moncheite
Formula: Pt(Te,Bi)2
ⓘ Native Gold
Formula: Au
ⓘ Native Gold var. Palladium-bearing Gold
Formula: (Au,Pd)
ⓘ Native Silver
Formula: Ag
ⓘ Nickeline
Formula: NiAs
ⓘ Palladoarsenide
Formula: Pd2As
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Siegenite
Formula: CoNi2S4
ⓘ Skutterudite
Formula: CoAs3
ⓘ Sopcheite
Formula: Ag4Pd3Te4
ⓘ Sperrylite
Formula: PtAs2
ⓘ Sphalerite
Formula: ZnS
ⓘ Stibiopalladinite
Formula: Pd5Sb2
ⓘ Stillwaterite
Formula: Pd8As3
ⓘ Violarite
Formula: Fe2+Ni3+2S4
ⓘ Vysotskite
Formula: PdS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
ⓘNative Silver1.AA.05Ag
ⓘNative Gold
var. Palladium-bearing Gold		1.AA.05(Au,Pd)
Group 2 - Sulphides and Sulfosalts
ⓘStillwaterite2.AC.10aPd8As3
ⓘIsomertieite2.AC.15aPd11Sb2As2
ⓘStibiopalladinite2.AC.20aPd5Sb2
ⓘPalladoarsenide2.AC.25aPd2As
ⓘBornite2.BA.15Cu5FeS4
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘSopcheite2.BC.55Ag4Pd3Te4
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCubanite2.CB.55aCuFe2S3
ⓘKotulskite2.CC.05Pd(Te,Bi)2-x (x ≈ 0.4)
ⓘNickeline2.CC.05NiAs
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMillerite2.CC.20NiS
ⓘBraggite2.CC.35aPdPt3S4
ⓘVysotskite2.CC.35aPdS
ⓘGalena2.CD.10PbS
ⓘSiegenite2.DA.05CoNi2S4
ⓘViolarite2.DA.05Fe2+Ni3+2S4
ⓘMelonite2.EA.20NiTe2
ⓘMerenskyite2.EA.20PdTe2
ⓘMoncheite2.EA.20Pt(Te,Bi)2
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘSperrylite2.EB.05aPtAs2
ⓘMarcasite2.EB.10aFeS2
ⓘLöllingite2.EB.15aFeAs2
ⓘArsenopyrite2.EB.20FeAsS
ⓘCobaltite2.EB.25CoAsS
ⓘGersdorffite2.EB.25NiAsS
ⓘSkutterudite2.EC.05CoAs3
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘCassiterite4.DB.05SnO2
Group 9 - Silicates
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ CassiteriteSnO2
Oⓘ IlmeniteFe2+TiO3
Oⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ MagnetiteFe2+Fe23+O4
NaSodium
Naⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BorniteCu5FeS4
Sⓘ BraggitePdPt3S4
Sⓘ ChalcopyriteCuFeS2
Sⓘ CobaltiteCoAsS
Sⓘ CovelliteCuS
Sⓘ CubaniteCuFe2S3
Sⓘ GalenaPbS
Sⓘ GersdorffiteNiAsS
Sⓘ MarcasiteFeS2
Sⓘ MilleriteNiS
Sⓘ MolybdeniteMoS2
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SiegeniteCoNi2S4
Sⓘ SphaleriteZnS
Sⓘ ViolariteFe2+Ni23+S4
Sⓘ VysotskitePdS
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ ArsenopyriteFeAsS
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ CubaniteCuFe2S3
Feⓘ IlmeniteFe2+TiO3
Feⓘ LöllingiteFeAs2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ ViolariteFe2+Ni23+S4
CoCobalt
Coⓘ CobaltiteCoAsS
Coⓘ SiegeniteCoNi2S4
Coⓘ SkutteruditeCoAs3
NiNickel
Niⓘ GersdorffiteNiAsS
Niⓘ MeloniteNiTe2
Niⓘ MilleriteNiS
Niⓘ NickelineNiAs
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ SiegeniteCoNi2S4
Niⓘ ViolariteFe2+Ni23+S4
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CovelliteCuS
Cuⓘ CubaniteCuFe2S3
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ CobaltiteCoAsS
Asⓘ GersdorffiteNiAsS
Asⓘ IsomertieitePd11Sb2As2
Asⓘ LöllingiteFeAs2
Asⓘ NickelineNiAs
Asⓘ PalladoarsenidePd2As
Asⓘ SkutteruditeCoAs3
Asⓘ SperrylitePtAs2
Asⓘ StillwateritePd8As3
MoMolybdenum
Moⓘ MolybdeniteMoS2
PdPalladium
Pdⓘ BraggitePdPt3S4
Pdⓘ IsomertieitePd11Sb2As2
Pdⓘ KotulskitePd(Te,Bi)2-x (x ≈ 0.4)
Pdⓘ MerenskyitePdTe2
Pdⓘ PalladoarsenidePd2As
Pdⓘ SopcheiteAg4Pd3Te4
Pdⓘ StibiopalladinitePd5Sb2
Pdⓘ StillwateritePd8As3
Pdⓘ VysotskitePdS
Pdⓘ Native Gold var. Palladium-bearing Gold(Au,Pd)
AgSilver
Agⓘ Native SilverAg
Agⓘ SopcheiteAg4Pd3Te4
SnTin
Snⓘ CassiteriteSnO2
SbAntimony
Sbⓘ IsomertieitePd11Sb2As2
Sbⓘ StibiopalladinitePd5Sb2
TeTellurium
Teⓘ KotulskitePd(Te,Bi)2-x (x ≈ 0.4)
Teⓘ MeloniteNiTe2
Teⓘ MerenskyitePdTe2
Teⓘ MoncheitePt(Te,Bi)2
Teⓘ SopcheiteAg4Pd3Te4
PtPlatinum
Ptⓘ BraggitePdPt3S4
Ptⓘ MoncheitePt(Te,Bi)2
Ptⓘ SperrylitePtAs2
AuGold
Auⓘ Native GoldAu
Auⓘ Native Gold var. Palladium-bearing Gold(Au,Pd)
PbLead
Pbⓘ GalenaPbS
BiBismuth
Biⓘ KotulskitePd(Te,Bi)2-x (x ≈ 0.4)
Biⓘ MoncheitePt(Te,Bi)2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Watkinson, D.H. and Dunning, G. (1979) Geology and platinum-group mineralization, Lac-des-Iles Complex, northwestern Ontario. Canadian Mineralogist 17, 453-462.
Louis J. Cabri and J.H. Gilles Laflamme (1979) Mineralogy of Samples from the Lac Des Iles Area, Ontario. Canmet Report 79-27
TALKINGTON, R.W. & WATKINSON, D.H. (1984) Trends in the distribution of the precious metals in the Lac-des-Iles complex, Northwestern Ontario. Canadian Mineralogist 22, 125-136.
Brugmann, G. E., Naldrett, A. J., Macdonald, A. J. (1989) Magma mixing and constitution zone refining in the Lac des Iles Complex, Ontario; genesis of platinum-group element mineralization. Economic Geology, 84 (6) 1557-1573 doi:10.2113/gsecongeo.84.6.1557
[1]Bain, Wyatt M., Hollings, Pete, Djon, Lionnel M., Brzozowski, Matthew J., Layton-Matthews, Daniel, Dobosz, Agatha (2024) The geology, geochemistry, and magmatic evolution of the Legris Lake mafic–ultramafic complex, Ontario, Canada. Mineralium Deposita, 59 (1) 85-108 doi:10.1007/s00126-023-01183-x
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