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Eldorado Mine, Port Radium District, Great Bear Lake, Northwest Territories, Canadai
Regional Level Types
Eldorado MineMine
Port Radium DistrictDistrict
Great Bear LakeLake
Northwest TerritoriesTerritory
CanadaCountry

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Key
Latitude & Longitude (WGS84):
66° 5' North , 118° 2' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:


A uranium/silver mine.

Eldorado Mining and Refining (a Crown Corporation) operated mines from 1940's to 1960's.
The mineral claims were transferred to Echo Bay Mines Ltd. in 1964, which operated the Echo Bay mine to 1974, and then re-worked the Port Radium mine to 1982.

The ore deposit worked by the Eldorado Mine is one of the most extensive examples of a class of ore deposit known generally as the five-element type. The name derives from the dominance of the principal stage of mineral deposition by Ag-Co-Ni-As-Bi but is somewhat deceptive because it implies simplicity. Actually many ore deposits in this class are considerably more complex beginning with the presence, in a few, of major amounts of uranium oxide. The Eldorado mine, along with some of the ore deposits of the Jachymov district in the Czech Republic, are the best examples of the uranium-rich variant of the five-element ore deposit type.

No five-element ore district has received adequate scientific investigation. A general overview is given by Kissin, Geoscience Canada, V. 19, No. 3, (1992).

Select Mineral List Type

Standard Detailed Strunz Dana 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

38 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Algodonite
Formula: (Cu1-xAsx)
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Reference: No reference listed
Arsenopyrite
Formula: FeAsS
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Bismuth
Formula: Bi
Reference: Kidd & Haycock (1935).
Bornite
Formula: Cu5FeS4
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Chalcocite
Formula: Cu2S
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Chalcopyrite
Formula: CuFeS2
Reference: Kidd & Haycock (1935).
Chalcostibite
Formula: CuSbS2
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Cobaltite
Formula: CoAsS
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Covellite
Formula: CuS
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Cubanite
Formula: CuFe2S3
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Famatinite
Formula: Cu3SbS4
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Freibergite
Formula: (Ag,Cu,◻)10Fe2+2Sb4S12
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Galena
Formula: PbS
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Gersdorffite
Formula: NiAsS
Reference: Kidd & Haycock (1935).
Glaucodot
Formula: (Co0.50Fe0.50)AsS
Reference: Kidd & Haycock (1935).
Guanajuatite
Formula: Bi2Se3
Reference: B. J. Kieller (1965) Mineralogy of the No. 2 Zone Eldorado Mine, Port Radium Northwest Territories. Bulletin of Canadian Petroleum Geology 13:452
Hematite
Formula: Fe2O3
Reference: Kidd & Haycock (1935).
Hessite
Formula: Ag2Te
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Jalpaite
Formula: Ag3CuS2
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
'Klaprothite (of Petersen)'
Reference: B. J. Kieller (1965) Mineralogy of the No. 2 Zone Eldorado Mine, Port Radium Northwest Territories. Bulletin of Canadian Petroleum Geology 13:452
Löllingite
Formula: FeAs2
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Kidd & Haycock (1935).
Molybdenite
Formula: MoS2
Reference: Kidd & Haycock (1935).
Nickeline
Formula: NiAs
Reference: No reference listed
Nickelskutterudite
Formula: (Ni,Co,Fe)As3
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Polydymite
Formula: Ni2+Ni3+2S4
Reference: Kidd & Haycock (1935).
'Psilomelane'
Formula: Mn, O
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Pyrite
Formula: FeS2
Reference: Kidd & Haycock (1935).
Pyrolusite
Formula: Mn4+O2
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Quartz
Formula: SiO2
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Rammelsbergite
Formula: NiAs2
Reference: No reference listed
Safflorite
Formula: (Co,Ni,Fe)As2
Reference: Kidd & Haycock (1935).
'Schirmerite'
Formula: PbAgBi3S6 - Pb3Ag1.5Bi3.5S9
Reference: B. J. Kieller (1965) Mineralogy of the No. 2 Zone Eldorado Mine, Port Radium Northwest Territories. Bulletin of Canadian Petroleum Geology 13:452
Silver
Formula: Ag
Reference: Kidd & Haycock (1935).
Skutterudite
Formula: CoAs3
Reference: Kidd & Haycock (1935).
Sphalerite
Formula: ZnS
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Stromeyerite
Formula: AgCuS
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
'Tetrahedrite'
Formula: Cu6(Cu4X2)Sb4S13
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16
Uraninite
Formula: UO2
Reference: Kidd & Haycock (1935); Rocks & Min.: 21:207.; B. J. Kieller (1965) Mineralogy of the No. 2 Zone Eldorado Mine, Port Radium Northwest Territories. Bulletin of Canadian Petroleum Geology 13:452
Uraninite var: Pitchblende
Formula: UO2
Reference: Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Algodonite2.AA.10a(Cu1-xAsx)
Arsenopyrite2.EB.20FeAsS
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Chalcostibite2.HA.05CuSbS2
Cobaltite2.EB.25CoAsS
Covellite2.CA.05aCuS
Cubanite2.CB.55aCuFe2S3
Famatinite2.KA.10Cu3SbS4
Freibergite2.GB.05(Ag,Cu,◻)10Fe2+2Sb4S12
Galena2.CD.10PbS
Gersdorffite2.EB.25NiAsS
Glaucodot2.EB.10c(Co0.50Fe0.50)AsS
Guanajuatite2.DB.05Bi2Se3
Hessite2.BA.60Ag2Te
Jalpaite2.BA.45Ag3CuS2
Löllingite2.EB.15aFeAs2
Molybdenite2.EA.30MoS2
Nickeline2.CC.05NiAs
Nickelskutterudite2.EC.05(Ni,Co,Fe)As3
Polydymite2.DA.05Ni2+Ni3+2S4
Pyrite2.EB.05aFeS2
Rammelsbergite2.EB.15aNiAs2
Safflorite2.EB.15a(Co,Ni,Fe)As2
'Schirmerite'2.JB.40dPbAgBi3S6 - Pb3Ag1.5Bi3.5S9
Skutterudite2.EC.05CoAs3
Sphalerite2.CB.05aZnS
Stromeyerite2.BA.40AgCuS
'Tetrahedrite'2.GB.05Cu6(Cu4X2)Sb4S13
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
Uraninite4.DL.05UO2
var: Pitchblende4.DL.05UO2
Group 8 - Phosphates, Arsenates and Vanadates
Annabergite8.CE.40Ni3(AsO4)2 · 8H2O
Erythrite8.CE.40Co3(AsO4)2 · 8H2O
Unclassified Minerals, Rocks, etc.
'Klaprothite (of Petersen)'-
'Psilomelane'-Mn, O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Silver1.1.1.2Ag
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmXp, with m:p > 3:1
Algodonite2.1.1.1(Cu1-xAsx)
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Chalcocite2.4.7.1Cu2S
Hessite2.4.2.1Ag2Te
Jalpaite2.4.4.1Ag3CuS2
Stromeyerite2.4.6.1AgCuS
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Nickeline2.8.11.1NiAs
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Cubanite2.9.13.1CuFe2S3
AmBnXp, with (m+n):p = 3:4
Polydymite2.10.1.7Ni2+Ni3+2S4
AmBnXp, with (m+n):p = 2:3
Guanajuatite2.11.2.4Bi2Se3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Cobaltite2.12.3.1CoAsS
Gersdorffite2.12.3.2NiAsS
Glaucodot2.12.6.1(Co0.50Fe0.50)AsS
Löllingite2.12.2.9FeAs2
Molybdenite2.12.10.1MoS2
Nickelskutterudite2.12.17.2(Ni,Co,Fe)As3
Pyrite2.12.1.1FeS2
Rammelsbergite2.12.2.12NiAs2
Safflorite2.12.2.11(Co,Ni,Fe)As2
Skutterudite2.12.17.1CoAs3
Group 3 - SULFOSALTS
ø = 4
Famatinite3.2.2.2Cu3SbS4
3 <ø < 4
Freibergite3.3.6.3(Ag,Cu,◻)10Fe2+2Sb4S12
'Tetrahedrite'3.3.6.1Cu6(Cu4X2)Sb4S13
2.5 < ø < 3
'Schirmerite'3.5.5.1PbAgBi3S6 - Pb3Ag1.5Bi3.5S9
ø = 2
Chalcostibite3.7.5.1CuSbS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Annabergite40.3.6.4Ni3(AsO4)2 · 8H2O
Erythrite40.3.6.3Co3(AsO4)2 · 8H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Klaprothite (of Petersen)'-
'Psilomelane'-Mn, O
Uraninite
var: Pitchblende
-UO2

List of minerals for each chemical element

HHydrogen
H AnnabergiteNi3(AsO4)2 · 8H2O
H ErythriteCo3(AsO4)2 · 8H2O
OOxygen
O AnnabergiteNi3(AsO4)2 · 8H2O
O HematiteFe2O3
O UraniniteUO2
O MagnetiteFe2+Fe23+O4
O QuartzSiO2
O PsilomelaneMn, O
O ErythriteCo3(AsO4)2 · 8H2O
O PyrolusiteMn4+O2
O Uraninite (var: Pitchblende)UO2
SiSilicon
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S MolybdeniteMoS2
S PyriteFeS2
S Glaucodot(Co0.50Fe0.50)AsS
S PolydymiteNi2+Ni23+S4
S GersdorffiteNiAsS
S SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
S ArsenopyriteFeAsS
S SphaleriteZnS
S GalenaPbS
S BorniteCu5FeS4
S ChalcociteCu2S
S TetrahedriteCu6(Cu4X2)Sb4S13
S ChalcostibiteCuSbS2
S FamatiniteCu3SbS4
S CobaltiteCoAsS
S StromeyeriteAgCuS
S AcanthiteAg2S
S CovelliteCuS
S CubaniteCuFe2S3
S Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
S JalpaiteAg3CuS2
MnManganese
Mn PsilomelaneMn, O
Mn PyrolusiteMn4+O2
FeIron
Fe HematiteFe2O3
Fe ChalcopyriteCuFeS2
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe Glaucodot(Co0.50Fe0.50)AsS
Fe ArsenopyriteFeAsS
Fe BorniteCu5FeS4
Fe LöllingiteFeAs2
Fe Nickelskutterudite(Ni,Co,Fe)As3
Fe CubaniteCuFe2S3
Fe Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
CoCobalt
Co Safflorite(Co,Ni,Fe)As2
Co Glaucodot(Co0.50Fe0.50)AsS
Co SkutteruditeCoAs3
Co CobaltiteCoAsS
Co Nickelskutterudite(Ni,Co,Fe)As3
Co ErythriteCo3(AsO4)2 · 8H2O
NiNickel
Ni AnnabergiteNi3(AsO4)2 · 8H2O
Ni NickelineNiAs
Ni RammelsbergiteNiAs2
Ni PolydymiteNi2+Ni23+S4
Ni GersdorffiteNiAsS
Ni Nickelskutterudite(Ni,Co,Fe)As3
CuCopper
Cu ChalcopyriteCuFeS2
Cu BorniteCu5FeS4
Cu ChalcociteCu2S
Cu TetrahedriteCu6(Cu4X2)Sb4S13
Cu Algodonite(Cu1-xAsx)
Cu ChalcostibiteCuSbS2
Cu FamatiniteCu3SbS4
Cu StromeyeriteAgCuS
Cu CovelliteCuS
Cu CubaniteCuFe2S3
Cu Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Cu JalpaiteAg3CuS2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As AnnabergiteNi3(AsO4)2 · 8H2O
As NickelineNiAs
As RammelsbergiteNiAs2
As Safflorite(Co,Ni,Fe)As2
As Glaucodot(Co0.50Fe0.50)AsS
As GersdorffiteNiAsS
As SkutteruditeCoAs3
As ArsenopyriteFeAsS
As Algodonite(Cu1-xAsx)
As CobaltiteCoAsS
As LöllingiteFeAs2
As Nickelskutterudite(Ni,Co,Fe)As3
As ErythriteCo3(AsO4)2 · 8H2O
SeSelenium
Se GuanajuatiteBi2Se3
MoMolybdenum
Mo MolybdeniteMoS2
AgSilver
Ag SilverAg
Ag SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
Ag StromeyeriteAgCuS
Ag AcanthiteAg2S
Ag HessiteAg2Te
Ag Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Ag JalpaiteAg3CuS2
SbAntimony
Sb TetrahedriteCu6(Cu4X2)Sb4S13
Sb ChalcostibiteCuSbS2
Sb FamatiniteCu3SbS4
Sb Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
TeTellurium
Te HessiteAg2Te
PbLead
Pb SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
Pb GalenaPbS
BiBismuth
Bi BismuthBi
Bi SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
Bi GuanajuatiteBi2Se3
UUranium
U UraniniteUO2
U Uraninite (var: Pitchblende)UO2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Kidd & Haycock (1935)
Rod Tyson (1989): The Port Radium District, Northwest Territories, Canada Mineralogical Record 20 (3), 201-208.
Dana 7:I:308
Rocks & Minerals: 21, 207
Lang,A.H (1952) Canadian Deposits of Uranium and Thorium. Geological Survey of Canada. Economic Geology Series No.16, p.53

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