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Cigar Lake Mine, Athabasca Basin, Saskatchewan, Canadai
Regional Level Types
Cigar Lake MineMine (Active)
Athabasca BasinBasin
SaskatchewanProvince
CanadaCountry

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Latitude & Longitude (WGS84):
58° 4' 6'' North , 104° 32' 26'' West
Latitude & Longitude (decimal):
58.06861,-104.54056
GeoHash:
G#: cdmdm55fh
GRN:
N39W42
Type:
Mine (Active) - last checked 2020
Deposit first discovered:
1983
KΓΆppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
10092
Long-form identifier:
1:2:10092:3
GUID (UUID V4):
e542efb0-1628-429d-bec6-02fe4c53d55e


The world's second largest uranium deposit, discovered in 1983 and operated by a joint venture of Cameco (50%), COGEMA, TEPCO and Idemitsu. Cigar Lake is the world's highest grade uranium mine. In 2018 the average grade of ore (U308) was 14.48%.

The deposit has also been studied as a natural analogue for nuclear waste disposal, with a very concentrated uranium oxide core isolated by a clay mineral halo.

Located about 660 km north of Saskatoon.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


34 valid minerals.

Detailed Mineral List:

β“˜ Anatase
Formula: TiO2
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Bornite
Formula: Cu5FeS4
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Calcite
Formula: CaCO3
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Chalcocite
Formula: Cu2S
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Chalcopyrite
Formula: CuFeS2
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ 'Chlorite Group'
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Clausthalite
Formula: PbSe
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Cobaltite
Formula: CoAsS
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Coffinite
Formula: U(SiO4) · nH2O
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Covellite
Formula: CuS
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Digenite
Formula: Cu9S5
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Galena
Formula: PbS
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Gersdorffite
Formula: NiAsS
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Glaucodot
Formula: (Co0.50Fe0.50)AsS
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Graphite
Formula: C
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Hematite
Formula: Fe2O3
Reference: Reyx, J., Ruhlmann, F. (1993) Étude métallographique des différentes associations minérales et caractérisation chimique des minéraux uranifères du gisement de Cigar Lake (Saskatchewan, Canada) [Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada)]. Canadian Journal of Earth Sciences, 30(4), 705-719. Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Ilmenite
Formula: Fe2+TiO3
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Jordisite
Formula: MoS2
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ LΓΆllingite
Formula: FeAs2
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Marcasite
Formula: FeS2
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Maucherite
Formula: Ni11As8
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: http://cgc.rncan.gc.ca/mindep/synth_dep/uranium/pdf/deposit_synthesis.uranium.jefferson.pdf. Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: http://cgc.rncan.gc.ca/mindep/synth_dep/uranium/pdf/deposit_synthesis.uranium.jefferson.pdf. Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Nickeline
Formula: NiAs
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Paraguanajuatite
Formula: Bi2Se3
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Pyrite
Formula: FeS2
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Pyrite var. Bravoite
Formula: (Fe,Ni)S2
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Rammelsbergite
Formula: NiAs2
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Siderite
Formula: FeCO3
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Sillimanite
Formula: Al2(SiO4)O
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
β“˜ Skutterudite
Formula: CoAs3
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Smythite
Formula: (Fe,Ni)3+xS4 (x=0-0.3)
Reference: Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Sphalerite
Formula: ZnS
Reference: http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
β“˜ Sudoite
Formula: Mg2Al3(Si3Al)O10)(OH)8
Reference: Percival, J.B., Kodama, H. (1989) Sudoite from Cigar Lake, Saskatchewan. The Canadian Mineralogist, 27:4, 633-641.
β“˜ Uraninite
Formula: UO2
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119. Pagel, M., Ruhlmann, F., Bruneton, P. (1993) The Cigar Lake uranium deposit, Saskatchewan, Canada. Canadian Journal of Earth Sciences, 30(4), 651-652. Reyx, J., Ruhlmann, F. (1993) Étude métallographique des différentes associations minérales et caractérisation chimique des minéraux uranifères du gisement de Cigar Lake (Saskatchewan, Canada) [Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada)]. Canadian Journal of Earth Sciences, 30(4), 705-719.
β“˜ Uraninite var. Pitchblende
Formula: UO2
Reference: Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
β“˜Bornite2.BA.15Cu5FeS4
β“˜Chalcocite2.BA.05Cu2S
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Clausthalite2.CD.10PbSe
β“˜Cobaltite2.EB.25CoAsS
β“˜Covellite2.CA.05aCuS
β“˜Digenite2.BA.10Cu9S5
β“˜Galena2.CD.10PbS
β“˜Gersdorffite2.EB.25NiAsS
β“˜Glaucodot2.EB.10c(Co0.50Fe0.50)AsS
β“˜Jordisite2.EA.30MoS2
β“˜LΓΆllingite2.EB.15aFeAs2
β“˜Marcasite2.EB.10aFeS2
β“˜Maucherite2.AB.15Ni11As8
β“˜Nickeline2.CC.05NiAs
β“˜Paraguanajuatite2.DC.05Bi2Se3
β“˜Pyrite2.EB.05aFeS2
β“˜var. Bravoite2.EB.05a(Fe,Ni)S2
β“˜Rammelsbergite2.EB.15aNiAs2
β“˜Skutterudite2.EC.05CoAs3
β“˜Smythite2.CC.10(Fe,Ni)3+xS4 (x=0-0.3)
β“˜Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
β“˜Anatase4.DD.05TiO2
β“˜Hematite4.CB.05Fe2O3
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Uraninite4.DL.05UO2
β“˜var. Pitchblende4.DL.05UO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Siderite5.AB.05FeCO3
Group 9 - Silicates
β“˜Coffinite9.AD.30U(SiO4) Β· nH2O
β“˜Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
β“˜Dravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜Sillimanite9.AF.05Al2(SiO4)O
β“˜Sudoite9.EC.55Mg2Al3(Si3Al)O10)(OH)8
Unclassified Minerals, Rocks, etc.
β“˜'Chlorite Group'-
β“˜'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hβ“˜ SudoiteMg2Al3(Si3Al)O10)(OH)8
Hβ“˜ CoffiniteU(SiO4) · nH2O
Hβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
BBoron
Bβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cβ“˜ GraphiteC
Cβ“˜ CalciteCaCO3
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ Uraninite var. PitchblendeUO2
Oβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oβ“˜ SudoiteMg2Al3(Si3Al)O10)(OH)8
Oβ“˜ CoffiniteU(SiO4) · nH2O
Oβ“˜ SillimaniteAl2(SiO4)O
Oβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ CalciteCaCO3
Oβ“˜ SideriteFeCO3
Oβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ HematiteFe2O3
Oβ“˜ UraniniteUO2
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ AnataseTiO2
Oβ“˜ IlmeniteFe2+TiO3
NaSodium
Naβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgβ“˜ SudoiteMg2Al3(Si3Al)O10)(OH)8
Mgβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mgβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alβ“˜ SudoiteMg2Al3(Si3Al)O10)(OH)8
Alβ“˜ SillimaniteAl2(SiO4)O
Alβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Alβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siβ“˜ SudoiteMg2Al3(Si3Al)O10)(OH)8
Siβ“˜ CoffiniteU(SiO4) · nH2O
Siβ“˜ SillimaniteAl2(SiO4)O
Siβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
Sβ“˜ PyriteFeS2
Sβ“˜ MarcasiteFeS2
Sβ“˜ Pyrite var. Bravoite(Fe,Ni)S2
Sβ“˜ GersdorffiteNiAsS
Sβ“˜ CobaltiteCoAsS
Sβ“˜ Glaucodot(Co0.50Fe0.50)AsS
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ BorniteCu5FeS4
Sβ“˜ DigeniteCu9S5
Sβ“˜ ChalcociteCu2S
Sβ“˜ CovelliteCuS
Sβ“˜ SphaleriteZnS
Sβ“˜ GalenaPbS
Sβ“˜ JordisiteMoS2
Sβ“˜ Smythite(Fe,Ni)3+xS4 (x=0-0.3)
KPotassium
Kβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ CalciteCaCO3
TiTitanium
Tiβ“˜ AnataseTiO2
Tiβ“˜ IlmeniteFe2+TiO3
FeIron
Feβ“˜ PyriteFeS2
Feβ“˜ MarcasiteFeS2
Feβ“˜ Pyrite var. Bravoite(Fe,Ni)S2
Feβ“˜ Glaucodot(Co0.50Fe0.50)AsS
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ BorniteCu5FeS4
Feβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Feβ“˜ SideriteFeCO3
Feβ“˜ HematiteFe2O3
Feβ“˜ LΓΆllingiteFeAs2
Feβ“˜ Smythite(Fe,Ni)3+xS4 (x=0-0.3)
Feβ“˜ IlmeniteFe2+TiO3
CoCobalt
Coβ“˜ CobaltiteCoAsS
Coβ“˜ Glaucodot(Co0.50Fe0.50)AsS
Coβ“˜ SkutteruditeCoAs3
NiNickel
Niβ“˜ Pyrite var. Bravoite(Fe,Ni)S2
Niβ“˜ RammelsbergiteNiAs2
Niβ“˜ NickelineNiAs
Niβ“˜ GersdorffiteNiAsS
Niβ“˜ Smythite(Fe,Ni)3+xS4 (x=0-0.3)
Niβ“˜ MaucheriteNi11As8
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ DigeniteCu9S5
Cuβ“˜ ChalcociteCu2S
Cuβ“˜ CovelliteCuS
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ RammelsbergiteNiAs2
Asβ“˜ NickelineNiAs
Asβ“˜ GersdorffiteNiAsS
Asβ“˜ CobaltiteCoAsS
Asβ“˜ Glaucodot(Co0.50Fe0.50)AsS
Asβ“˜ SkutteruditeCoAs3
Asβ“˜ LΓΆllingiteFeAs2
Asβ“˜ MaucheriteNi11As8
SeSelenium
Seβ“˜ ClausthalitePbSe
Seβ“˜ ParaguanajuatiteBi2Se3
MoMolybdenum
Moβ“˜ JordisiteMoS2
PbLead
Pbβ“˜ GalenaPbS
Pbβ“˜ ClausthalitePbSe
BiBismuth
Biβ“˜ ParaguanajuatiteBi2Se3
UUranium
Uβ“˜ Uraninite var. PitchblendeUO2
Uβ“˜ CoffiniteU(SiO4) · nH2O
Uβ“˜ UraniniteUO2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
(1985) Mining Annual Review: 312.
Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada). In: Saskatchewan Geological Society Special Publication Number 8: Economic Minerals of Saskatchewan, Proceedings of a Symposium Held in Regina, Saskatchewan 17 & 18 November 1986, 99-119.
Percival, J.B., Kodama, H. (1989) Sudoite from Cigar Lake, Saskatchewan. The Canadian Mineralogist, 27:4, 633-641.
Reyx, J., Ruhlmann, F. (1993) Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences, 30(4), 705-719.

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