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Silver Islet mine, Silver Islet, Sibley Township, Thunder Bay District, Ontario, Canadai
Regional Level Types
Silver Islet mineMine
Silver Islet- not defined -
Sibley TownshipTownship
Thunder Bay DistrictDistrict
OntarioProvince
CanadaCountry

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Key
Latitude & Longitude (WGS84):
48° 19' 16'' North , 88° 48' 40'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Thunder Bay99,334 (2018)33.1km


A tiny island in Lake Superior.

The Silver Islet mine was located on a very small, rocky islet just off shore in Lake Superior. To accommodate the workings the islet's size had to be increased with bulkheads and fill. The Silver islet ore deposit was the most productive in the Thunder Bay District and was in the “Island Group”, one of three groups of metalliferous vein ore deposits (Franklin, et al, 1986). The veins of the “Mainland” and “Port Coldwell” groups contain quite simple mineral assemblages including the common sulphides, silver, acanthite, quartz, calcite, barite and fluorite. However, the Silver Islet and Edwards Island deposits are characterized by a five element mineral assemblage, ie. Ag-Co-Ni-As-Bi. The mineral assemblages present in other ore deposits in the Island group appear simple and similar to those of the Mianland group. However, Franklin, et al (1986) note that the other ore deposits are poorly known and that the Silver Islet vein system contains significant areas of simple mineralogy.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


27 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Wilson, W.E. (1986). Famous mineral localities: the Silver Islet mine, Ontario. Mineralogical Record, 17, 49-60.
'Animikite'
Habit: Dendritic, massive
Colour: Silver tarnishing black
Fluorescence: none
Reference: Walker, T.L. and Thomson, E. (1921) Animikite and MacFarlanite From Silver Islet, Thunder Bay, L.Superior. University of Toronto Studies, Geological Series, No.12; Contributions to Canadian Mineralogy, 1921. P23-26
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Baryte
Formula: BaSO4
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Breithauptite
Formula: NiSb
Reference: Wilson, W.E. (1986). Famous mineral localities: the Silver Islet mine, Ontario. Mineralogical Record, 17, 49-60.
Calcite
Formula: CaCO3
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Chalcopyrite
Formula: CuFeS2
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Chlorargyrite
Formula: AgCl
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
'Chlorite Group'
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Cobaltite
Formula: CoAsS
Reference: [MinRec 1996]
Dolomite
Formula: CaMg(CO3)2
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Domeykite
Formula: Cu3As
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Fluorite
Formula: CaF2
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Galena
Formula: PbS
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Graphite
Formula: C
Reference: [MinRec 1996]; Transactions Of the American Institute of Mining Engineers, vol 33 (1903), 456.; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Gypsum
Formula: CaSO4 · 2H2O
Reference: [MinRec 1996]
'Huntilite'
Reference: American Journal of Science, Third Series, Vol. 17, Number 102, (June 18979) p. 486; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
'Macfarlanite'
Reference: Walker, T.L. and Thomson, E. (1921) Animikite and MacFarlanite From Silver Islet, Thunder Bay, L.Superior. University of Toronto Studies, Geological Series, No.12; Contributions to Canadian Mineralogy, 1921. P23-26
Marcasite
Formula: FeS2
Reference: [MinRec 1996]
Nickeline
Formula: NiAs
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Pyrargyrite
Formula: Ag3SbS3
Reference: [MinRec 1996]
Pyrite
Formula: FeS2
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Pyrrhotite
Formula: Fe7S8
Reference: Reiner Mielke 2009
Quartz
Formula: SiO2
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Rhodochrosite
Formula: MnCO3
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Silver
Formula: Ag
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Skutterudite
Formula: CoAs3
Reference: [MinRec 1996]
Sphalerite
Formula: ZnS
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Stephanite
Formula: Ag5SbS4
Reference: [MinRec 1996]
'Tetrahedrite'
Formula: Cu6Cu4(X)2Sb4S13
Reference: [MinRec 1996]; Sessional papers (1908) - Legislature of the Province of Ontario, Volume XL Part 1
Wurtzite
Formula: (Zn,Fe)S
Reference: [MinRec 1996]

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Breithauptite2.CC.05NiSb
Chalcopyrite2.CB.10aCuFeS2
Cobaltite2.EB.25CoAsS
Domeykite2.AA.10bCu3As
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Nickeline2.CC.05NiAs
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Skutterudite2.EC.05CoAs3
Sphalerite2.CB.05aZnS
Stephanite2.GB.10Ag5SbS4
'Tetrahedrite'2.GB.05Cu6Cu4(X)2Sb4S13
Wurtzite2.CB.45(Zn,Fe)S
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Rhodochrosite5.AB.05MnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Annabergite8.CE.40Ni3(AsO4)2 · 8H2O
Erythrite8.CE.40Co3(AsO4)2 · 8H2O
Unclassified Minerals, Rocks, etc.
'Animikite'-
'Chlorite Group'-
'Huntilite'-
'Macfarlanite'-

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
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:1
Domeykite2.2.2.1Cu3As
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Breithauptite2.8.11.2NiSb
Galena2.8.1.1PbS
Nickeline2.8.11.1NiAs
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
Wurtzite2.8.7.1(Zn,Fe)S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Cobaltite2.12.3.1CoAsS
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Skutterudite2.12.17.1CoAs3
Group 3 - SULFOSALTS
ø = 4
Stephanite3.2.4.1Ag5SbS4
3 <ø < 4
'Tetrahedrite'3.3.6.1Cu6Cu4(X)2Sb4S13
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
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.
'Animikite'-
'Chlorite Group'-
'Huntilite'-
'Macfarlanite'-

List of minerals for each chemical element

HHydrogen
H AnnabergiteNi3(AsO4)2 · 8H2O
H ErythriteCo3(AsO4)2 · 8H2O
H GypsumCaSO4 · 2H2O
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C GraphiteC
C RhodochrositeMnCO3
OOxygen
O AnnabergiteNi3(AsO4)2 · 8H2O
O BaryteBaSO4
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O ErythriteCo3(AsO4)2 · 8H2O
O GypsumCaSO4 · 2H2O
O QuartzSiO2
O RhodochrositeMnCO3
FFluorine
F FluoriteCaF2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S AcanthiteAg2S
S BaryteBaSO4
S ChalcopyriteCuFeS2
S CobaltiteCoAsS
S GalenaPbS
S GypsumCaSO4 · 2H2O
S MarcasiteFeS2
S PyrargyriteAg3SbS3
S PyriteFeS2
S SphaleriteZnS
S StephaniteAg5SbS4
S TetrahedriteCu6Cu4(X)2Sb4S13
S Wurtzite(Zn,Fe)S
S PyrrhotiteFe7S8
ClChlorine
Cl ChlorargyriteAgCl
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca FluoriteCaF2
Ca GypsumCaSO4 · 2H2O
MnManganese
Mn RhodochrositeMnCO3
FeIron
Fe ChalcopyriteCuFeS2
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
CoCobalt
Co CobaltiteCoAsS
Co ErythriteCo3(AsO4)2 · 8H2O
Co SkutteruditeCoAs3
NiNickel
Ni BreithauptiteNiSb
Ni AnnabergiteNi3(AsO4)2 · 8H2O
Ni NickelineNiAs
CuCopper
Cu ChalcopyriteCuFeS2
Cu DomeykiteCu3As
Cu TetrahedriteCu6Cu4(X)2Sb4S13
ZnZinc
Zn SphaleriteZnS
Zn Wurtzite(Zn,Fe)S
AsArsenic
As AnnabergiteNi3(AsO4)2 · 8H2O
As CobaltiteCoAsS
As DomeykiteCu3As
As ErythriteCo3(AsO4)2 · 8H2O
As NickelineNiAs
As SkutteruditeCoAs3
AgSilver
Ag AcanthiteAg2S
Ag ChlorargyriteAgCl
Ag PyrargyriteAg3SbS3
Ag SilverAg
Ag StephaniteAg5SbS4
SbAntimony
Sb BreithauptiteNiSb
Sb PyrargyriteAg3SbS3
Sb StephaniteAg5SbS4
Sb TetrahedriteCu6Cu4(X)2Sb4S13
BaBarium
Ba BaryteBaSO4
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Franklin,JM, Kissin,SA, Smyk,MC and Scott,SD (1986) Silver deposits associated with the Proterozoic rocks of the Thunder Bay district, Ontario. In `Silver Vein Deposits', a symposium held at the GAC/MAC London meeting in 1984, publ. in Can.J.Earth Sci. 23 no.10, pp.1460-1640, 1576-1591.
Wilson, W.E. (1986). Famous mineral localities: the Silver Islet mine, Ontario. Mineralogical Record, 17, 49-60.

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