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Gahcho KuΓ© Mine, Lac de Gras, Northwest Territories, Canadai
Regional Level Types
Gahcho KuΓ© MineMine (Active)
Lac de Gras- not defined -
Northwest TerritoriesTerritory
CanadaCountry

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Latitude & Longitude (WGS84):
63° 26' 11'' North , 109° 12' 3'' West
Latitude & Longitude (decimal):
63.43648,-109.20096
GeoHash:
G#: ce62gh623
GRN:
N43W37
Type:
Mine (Active) - last checked 2021
KΓΆppen climate type:
Dfc : Subarctic climate
Owned/operated by:
De Beers Group of Companies (85%) - a group of companies owned by Anglo American plc
Mindat Locality ID:
264496
Long-form identifier:
mindat:1:2:264496:0
GUID (UUID V4):
2491c340-3795-4a3f-9159-044630fdd44e


Diamondiferous kimberlites.

The mine is located 230 km south of the Arctic Circle at Kennedy Lake.

The Gahcho KuΓ© Mine is a joint venture of the De Beers Group and Mountain Province Diamonds Inc.

Open pit mining of three kimberlite pipes in a northerly sequence: Hearne, 5034 and Tuzo.

An open pit diamond mining operation opened in August 2016 with an estimate lifetime of 12 years.

The mine works three kimberlite pipes, the 5034, Hearne and Tuzo pipes.

The mine covers 1,200 hectares and the average annual production (2016/7) is ~4.5M Carats.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

15 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Baryte
Formula: BaSO4
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Calcite
Formula: CaCO3
β“˜ 'Chlorite Group'
β“˜ Chromite
Formula: Fe2+Cr3+2O4
β“˜ Diamond
Formula: C
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ 'Fayalite-Forsterite Series'
β“˜ Forsterite
Formula: Mg2SiO4
β“˜ Heamanite-(Ce) (TL)
Formula: (K0.5Ce0.5)TiO3
Type Locality:
β“˜ Hematite
Formula: Fe2O3
β“˜ 'Melilite Group'
Formula: Ca2M(XSiO7)
β“˜ Monticellite
Formula: CaMgSiO4
β“˜ Perovskite
Formula: CaTiO3
β“˜ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
β“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
β“˜ Quartz
Formula: SiO2
β“˜ Rutile
Formula: TiO2
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
β“˜ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Diamond1.CB.10aC
Group 4 - Oxides and Hydroxides
β“˜Chromite4.BB.05Fe2+Cr3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Heamanite-(Ce) (TL)4.CC.(K0.5Ce0.5)TiO3
β“˜Perovskite4.CC.30CaTiO3
β“˜Quartz4.DA.05SiO2
β“˜Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
Group 9 - Silicates
β“˜Forsterite9.AC.05Mg2SiO4
β“˜Monticellite9.AC.10CaMgSiO4
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Wollastonite9.DG.05Ca3(Si3O9)
β“˜Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Fayalite-Forsterite Series'-
β“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
β“˜'Serpentine Subgroup'-D3[Si2O5](OH)4
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'Melilite Group'-Ca2M(XSiO7)
β“˜'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ DiamondC
OOxygen
Oβ“˜ BaryteBaSO4
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ CalciteCaCO3
Oβ“˜ ChromiteFe2+Cr23+O4
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ HematiteFe2O3
Oβ“˜ MonticelliteCaMgSiO4
Oβ“˜ PerovskiteCaTiO3
Oβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ RutileTiO2
Oβ“˜ WollastoniteCa3(Si3O9)
Oβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ Melilite GroupCa2M(XSiO7)
Oβ“˜ Heamanite-(Ce)(K0.5Ce0.5)TiO3
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ MonticelliteCaMgSiO4
Mgβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Alβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ MonticelliteCaMgSiO4
Siβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ WollastoniteCa3(Si3O9)
Siβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Siβ“˜ Melilite GroupCa2M(XSiO7)
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ BaryteBaSO4
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Kβ“˜ Heamanite-(Ce)(K0.5Ce0.5)TiO3
CaCalcium
Caβ“˜ CalciteCaCO3
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ MonticelliteCaMgSiO4
Caβ“˜ PerovskiteCaTiO3
Caβ“˜ WollastoniteCa3(Si3O9)
Caβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Caβ“˜ Melilite GroupCa2M(XSiO7)
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ PerovskiteCaTiO3
Tiβ“˜ RutileTiO2
Tiβ“˜ Heamanite-(Ce)(K0.5Ce0.5)TiO3
CrChromium
Crβ“˜ ChromiteFe2+Cr23+O4
FeIron
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ ChromiteFe2+Cr23+O4
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ HematiteFe2O3
BaBarium
Baβ“˜ BaryteBaSO4
CeCerium
Ceβ“˜ Heamanite-(Ce)(K0.5Ce0.5)TiO3

Localities in this Region

Canada

Other Regions, Features and Areas containing this locality

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

Caro, G., Kopylova, M. G., & Creaser, R. A. (2004). The hypabyssal 5034 kimberlite of the Gahcho Kue cluster, southeastern Slave craton, Northwest Territories, Canada: a granite-contaminated Group-I kimberlite. The Canadian Mineralogist, 42(1), 183-207.
www.pdiam.com (n.d.) http://www.pdiam.com/s/LacdeGras.asp
www.debeersgroup.com (n.d.) https://www.debeersgroup.com/canada/en/operations/mining/gahcho-kue-project.html
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