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Grand Duc Mine, Preissac, Abitibi RCM, Abitibi-Tรฉmiscamingue, Quรฉbec, Canadai
Regional Level Types
Grand Duc MineMine
PreissacMunicipality (Rural)
Abitibi RCMRegional County Municipality
Abitibi-TรฉmiscamingueAdministrative Region
QuรฉbecProvince
CanadaCountry

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Latitude & Longitude (WGS84):
48° 15' 26'' North , 78° 32' 26'' West
Latitude & Longitude (decimal):
48.25735,-78.54077
GRN:
N33W38
Type:
Mine
Kรถppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Malartic3,710 (2008)33.2km
Rouyn-Noranda24,023 (2016)35.8km
Amos17,918 (2016)46.5km
Macamic1,559 (2016)64.4km
Mindat Locality ID:
475904
Long-form identifier:
mindat:1:2:475904:4
GUID (UUID V4):
0


The Grand Duc deposit, which is currently the site of a low-grade high-tonnage open pit operation, lies approximately 1 km west of the Doyon West deposit. Mineralized veins occur mostly within the Mooshla Intrusive Complex phase I aphyric to quartz porphyritic trondhjemite. Mineralized veins in the Grand Duc samples range from a few millimeters to a few centimeters in width and have sharp but undulating contacts with the host rocks.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


18 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

โ“˜ Altaite
Formula: PbTe
โ“˜ Calaverite
Formula: AuTe2
โ“˜ Calcite
Formula: CaCO3
โ“˜ Chalcopyrite
Formula: CuFeS2
โ“˜ 'Chlorite Group'
โ“˜ Hessite
Formula: Ag2Te
โ“˜ Magnetite
Formula: Fe2+Fe3+2O4
โ“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Native Gold
Formula: Au
โ“˜ Native Tellurium
Formula: Te
โ“˜ Petzite
Formula: Ag3AuTe2
โ“˜ Pyrite
Formula: FeS2
โ“˜ Pyrrhotite
Formula: Fe1-xS
โ“˜ Quartz
Formula: SiO2
โ“˜ Sphalerite
Formula: ZnS
โ“˜ Tellurobismuthite
Formula: Bi2Te3
โ“˜ Tetradymite
Formula: Bi2Te2S
โ“˜ Tsumoite
Formula: BiTe
โ“˜ Volynskite
Formula: AgBiTe2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Native Gold1.AA.05Au
โ“˜Native Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
โ“˜Hessite2.BA.60Ag2Te
โ“˜Petzite2.BA.75Ag3AuTe2
โ“˜Sphalerite2.CB.05aZnS
โ“˜Chalcopyrite2.CB.10aCuFeS2
โ“˜Pyrrhotite2.CC.10Fe1-xS
โ“˜Altaite2.CD.10PbTe
โ“˜Tellurobismuthite2.DC.05Bi2Te3
โ“˜Tetradymite2.DC.05Bi2Te2S
โ“˜Tsumoite2.DC.05BiTe
โ“˜Calaverite2.EA.10AuTe2
โ“˜Pyrite2.EB.05aFeS2
โ“˜Volynskite2.JA.20AgBiTe2
Group 4 - Oxides and Hydroxides
โ“˜Magnetite4.BB.05Fe2+Fe3+2O4
โ“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
โ“˜Calcite5.AB.05CaCO3
Group 9 - Silicates
โ“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
โ“˜'Chlorite Group'-

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

[1]Neyedley, Kevin; Mercier-Langevin, Patrick; Stern, Richard; Fayek, Mostafa; Hanley, Jacob J. (2026) Ore Mineralogy, Sulfide Geochemistry, and S Isotopes of Magmatic-Hydrothermal Au Mineralization Associated with the Mooshla Intrusive Complex, Doyon-Bousquet-LaRonde Mining Camp, Abitibi Greenstone Belt, Quebec. Economic Geology, 121 (2). p.285-303. doi:10.5382/econgeo.5227
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