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Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canadai
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09141960017272023805669.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
09342180017272023816757.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
05991140017272023825224.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
09141960017272023805669.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
09342180017272023816757.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
05991140017272023825224.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
09141960017272023805669.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
09342180017272023816757.jpg
Geco Mine 1975

Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada
Latitude & Longitude (WGS84):
49° 9' 19'' North , 85° 47' 21'' West
Latitude & Longitude (decimal):
49.15528,-85.78944
GRN:
N33W42
Type:
Mine
Köppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
6771
Long-form identifier:
mindat:1:2:6771:6
GUID (UUID V4):
0


A copper-zinc mine located 200 km East of Thunder Bay near Manitouwadge. Ore is an Archean Cu-Zn massive sulfide deposit. Mine is at least to the 2,850 level.

This volcano-sedimentary deposit has been affected by an amphibolite facies metamorphism (T = 650 °C, P = 6 kb) resulting in the formation of rocks such as gedrite-cordierite gneisses (cf. Petersen, 1984). Bakker (1979) indicates that gahnite is a relatively common mineral within the deposit and has a thin section with a chain of euhedral gahnite crystals in cordierite.

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


37 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
ⓘ Anthophyllite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘ 'Bastnäsite'
Formula: (Ce/Nd/Y/REE)(CO3)F
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
Petersen, E. U., Essene, E. J., Peacor, D. R., Marcotty, L. A. (1989) The occurrence of h�gbomite in high-grade metamorphic rocks. Contributions to Mineralogy and Petrology, 101 (3) 350-360 doi:10.1007/bf00375319
Franklin, J.M., Schnieders, B.R., Koopman, E.R. (1991) Mineral Deposits in the western Superior Province, Ontario (Field Trip 9) Geological Survey of Canada, Open File 2164.
Pan, Y., Fleet, M.E. (1992) Mineralogy and genesis of calc-silicates associated with Archean volcanogenic massive sulphide deposits at the Manitouwadge mining camp, Ontario. Canadian Journal of Earth Sciences: 29(7): 1375–1388.
Pan, Y., Fleet, M.E., Barnett, R.L., Chen, Y. (1993) Pyrosmalite in Canadian Precambrian sulfide deposits; mineral chemistry, petrogenesis and significance. The Canadian Mineralogist: 31(3): 695-710.
ⓘ Calcite
Formula: CaCO3
ⓘ Cassiterite
Formula: SnO2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ Chalcopyrite
Formula: CuFeS2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ 'Chlorite Group'
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ Cordierite
Formula: Mg2Al4Si5O18
ⓘ Corundum
Formula: Al2O3
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Ferro-actinolite
Formula: ◻Ca2Fe2+5(Si8O22)(OH)2
ⓘ Ferro-edenite
Formula: NaCa2Fe2+5(Si7Al)O22(OH)2
ⓘ Ferronigerite-2N1S
Formula: (Al,Fe,Zn)2(Al,Sn)6O11(OH)
ⓘ Gahnite
Formula: ZnAl2O4
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ Galena
Formula: PbS
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Gedrite
Formula: ◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
ⓘ Hastingsite
Formula: NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
ⓘ Hercynite
Formula: Fe2+Al2O4
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ 'Högbomite Group'
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ 'K Feldspar'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Microcline var. Amazonite
Formula: K(AlSi3O8)
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrosmalite-(Fe)
Formula: Fe2+8Si6O15(OH,Cl)10
ⓘ Pyrosmalite-(Mn)
Formula: Mn2+8Si6O15(OH,Cl)10
ⓘ Pyrrhotite
Formula: Fe1-xS
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
ⓘ Quartz
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ Sphalerite
Formula: ZnS
References:
Thomson, J.E., Ferguson, S.A., Johnston, W.G.Q., Pye, E.G., Savage, W.S., Thomson, R. (1957) Copper, Nickel, Lead, and Zinc Deposits in Ontario. Metal Resources Circular No. 2 of the Ontario Department of Mines (Revised to February, 1957).
Franklin, J.M., Schnieders, B.R., Koopman, E.R. (1991) Mineral Deposits in the western Superior Province, Ontario (Field Trip 9) Geological Survey of Canada, Open File 2164.
Pan, Y., Fleet, M.E. (1992) Mineralogy and genesis of calc-silicates associated with Archean volcanogenic massive sulphide deposits at the Manitouwadge mining camp, Ontario. Canadian Journal of Earth Sciences: 29(7): 1375–1388.
Pan, Y., Fleet, M.E., Barnett, R.L., Chen, Y. (1993) Pyrosmalite in Canadian Precambrian sulfide deposits; mineral chemistry, petrogenesis and significance. The Canadian Mineralogist: 31(3): 695-710.
ⓘ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Description: Occurs in an Archean Cu-Zn massive sulfide deposit. Zincian variety.
ⓘ Sudoite
Formula: Mg2Al3(Si3Al)O10)(OH)8
ⓘ Thaumasite
Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ 'UM1983-19-SiO:AlH'
Formula: (Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
ⓘ 'UM1983-20-SiO:AlH'
Formula: Al2Si2O7 · 4H2O
ⓘ 'UM1983-21-SiO:AlH'
Formula: Al1.25-2Si1-1.2O5.0-0.3H2O
ⓘ Zircon
Formula: Zr(SiO4)
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘGahnite4.BB.05ZnAl2O4
ⓘHercynite4.BB.05Fe2+Al2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘCorundum4.CB.05Al2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
ⓘRutile4.DB.05TiO2
ⓘFerronigerite-2N1S4.FC.20(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘThaumasite7.DG.15Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Group 9 - Silicates
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘCordierite9.CJ.10Mg2Al4Si5O18
ⓘAnthophyllite9.DD.05◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘGedrite9.DD.05◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘFerro-actinolite9.DE.10◻Ca2Fe2+5(Si8O22)(OH)2
ⓘFerro-edenite9.DE.15NaCa2Fe2+5(Si7Al)O22(OH)2
ⓘHastingsite9.DE.15NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘSudoite9.EC.55Mg2Al3(Si3Al)O10)(OH)8
ⓘPyrosmalite-(Fe)9.EE.10Fe2+8Si6O15(OH,Cl)10
ⓘPyrosmalite-(Mn)9.EE.10Mn2+8Si6O15(OH,Cl)10
ⓘMicrocline
var. Amazonite		9.FA.30K(AlSi3O8)
ⓘ9.FA.30K(AlSi3O8)
Unclassified
ⓘ'Bastnäsite'-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Högbomite Group'-
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ'UM1983-19-SiO:AlH'-(Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
ⓘ'UM1983-20-SiO:AlH'-Al2Si2O7 · 4H2O
ⓘ'UM1983-21-SiO:AlH'-Al1.25-2Si1-1.2O5.0-0.3H2O

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Hⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Hⓘ Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Hⓘ Gedrite◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Hⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Hⓘ Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ StauroliteFe22+Al9Si4O23(OH)
Hⓘ SudoiteMg2Al3(Si3Al)O10)(OH)8
Hⓘ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Hⓘ UM1983-19-SiO:AlH(Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
Hⓘ UM1983-20-SiO:AlHAl2Si2O7 · 4H2O
Hⓘ UM1983-21-SiO:AlHAl1.25-2Si1-1.2O5.0-0.3H2O
CCarbon
Cⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Cⓘ CalciteCaCO3
Cⓘ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ Microcline var. AmazoniteK(AlSi3O8)
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ CassiteriteSnO2
Oⓘ CordieriteMg2Al4Si5O18
Oⓘ CorundumAl2O3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Oⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Oⓘ Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Oⓘ GahniteZnAl2O4
Oⓘ Gedrite◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Oⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Oⓘ HercyniteFe2+Al2O4
Oⓘ IlmeniteFe2+TiO3
Oⓘ Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Monazite GroupREE(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ StauroliteFe22+Al9Si4O23(OH)
Oⓘ SudoiteMg2Al3(Si3Al)O10)(OH)8
Oⓘ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ ZirconZr(SiO4)
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Oⓘ UM1983-19-SiO:AlH(Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
Oⓘ UM1983-20-SiO:AlHAl2Si2O7 · 4H2O
Oⓘ UM1983-21-SiO:AlHAl1.25-2Si1-1.2O5.0-0.3H2O
FFluorine
Fⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Naⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ CordieriteMg2Al4Si5O18
Mgⓘ Gedrite◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ SudoiteMg2Al3(Si3Al)O10)(OH)8
AlAluminium
Alⓘ Microcline var. AmazoniteK(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ CordieriteMg2Al4Si5O18
Alⓘ CorundumAl2O3
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Alⓘ GahniteZnAl2O4
Alⓘ Gedrite◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Alⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Alⓘ HercyniteFe2+Al2O4
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpessartineMn32+Al2(SiO4)3
Alⓘ StauroliteFe22+Al9Si4O23(OH)
Alⓘ SudoiteMg2Al3(Si3Al)O10)(OH)8
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alⓘ UM1983-19-SiO:AlH(Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
Alⓘ UM1983-20-SiO:AlHAl2Si2O7 · 4H2O
Alⓘ UM1983-21-SiO:AlHAl1.25-2Si1-1.2O5.0-0.3H2O
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ Microcline var. AmazoniteK(AlSi3O8)
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ CordieriteMg2Al4Si5O18
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Siⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Siⓘ Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Siⓘ Gedrite◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Siⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Siⓘ Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ StauroliteFe22+Al9Si4O23(OH)
Siⓘ SudoiteMg2Al3(Si3Al)O10)(OH)8
Siⓘ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ ZirconZr(SiO4)
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Siⓘ UM1983-19-SiO:AlH(Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
Siⓘ UM1983-20-SiO:AlHAl2Si2O7 · 4H2O
Siⓘ UM1983-21-SiO:AlHAl1.25-2Si1-1.2O5.0-0.3H2O
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
ClChlorine
Clⓘ Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Clⓘ Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kⓘ Microcline var. AmazoniteK(AlSi3O8)
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ AndraditeCa3Fe23+(SiO4)3
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Caⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Caⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Caⓘ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
MnManganese
Mnⓘ Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
Mnⓘ SpessartineMn32+Al2(SiO4)3
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Ferro-edeniteNaCa2Fe52+(Si7Al)O22(OH)2
Feⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Feⓘ Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Feⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Feⓘ HercyniteFe2+Al2O4
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ StauroliteFe22+Al9Si4O23(OH)
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ GahniteZnAl2O4
Znⓘ Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Znⓘ SphaleriteZnS
YYttrium
Yⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
ZrZirconium
Zrⓘ ZirconZr(SiO4)
AgSilver
Agⓘ AcanthiteAg2S
SnTin
Snⓘ CassiteriteSnO2
Snⓘ Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
CeCerium
Ceⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
NdNeodymium
Ndⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
PbLead
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

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References

Bakker F.J. (1979) Petrology and Geochemistry of the Quartz Pebble Conglomerate of the Geco Massive Sulphide Deposit at Manitouwadge, Ontario: B.Sc. (Hon.) Thesis, McMaster University, Hamilton, Ontario, 120 p.
Essene E.J., Petersen E.U. and Pecor D.R. (1982) Nigerite-hogbomite-spinel assemblages from Manitouwadge, Ontario and their significance: EOS v. 63, p. 456
Spry, P.G. (1983) An unusual gahnite-forming reaction, Geco base-metal deposit, Manitouwadge, Ontario. The Canadian Mineralogist: 20(4): 549–553.
Stanton, R.L. (1983): The direct derivation of sillimanite from a kaolinitic precursor: evidence from the Geco Mine, Manitouwadge, Ontario. Economical Geology: 78: 422-437
Petersen, E.U. (1984) Metamorphism and geochemistry of the Geco massive sulphide deposit and its enclosing wall-rocks. Ph.D. Thesis, University of Michigan, Ann Arbor, Michigan.
Petersen, Erich U. (1986) Tin in volcanogenic massive sulfide deposits; an example from the Geco Mine, Manitouwadge District, Ontario, Canada. Economic Geology, 81 (2) 323-342 doi:10.2113/gsecongeo.81.2.323
Stevenson, R.K.; Martin, R.F. (1986) Implications of the presence of amazonite in the Broken Hill and Geco metamorphosed sulfide deposits. The Canadian Mineralogist, 24 (4). 729-745
Petersen, E. U., Essene, E. J., Peacor, D. R., Marcotty, L. A. (1989) The occurrence of h�gbomite in high-grade metamorphic rocks. Contributions to Mineralogy and Petrology, 101 (3) 350-360 doi:10.1007/bf00375319
Franklin, J.M., Schnieders, B.R., Koopman, E.R. (1991) Mineral Deposits in the western Superior Province, Ontario (Field Trip 9) Geological Survey of Canada, Open File 2164.
Sabina, Ann P. (1991) Rocks and minerals for the collector, Sudbury to Winnipeg. Miscellaneous report 49. Geological Survey of Canada p.83
Pan, Y., Fleet, M.E. (1992) Mineralogy and genesis of calc-silicates associated with Archean volcanogenic massive sulphide deposits at the Manitouwadge mining camp, Ontario. Canadian Journal of Earth Sciences: 29(7): 1375–1388.
Pan, Y., Fleet, M.E., Barnett, R.L., Chen, Y. (1993) Pyrosmalite in Canadian Precambrian sulfide deposits; mineral chemistry, petrogenesis and significance. The Canadian Mineralogist: 31(3): 695-710.
Pan, Y. (1997) Zircon- and monazite-forming metamorphic reactions at Manitouwadge, Ontario. The Canadian Mineralogist: 35(1): 105-118.
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