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Geco Mine, Gemmell Township, Thunder Bay District, Ontario, Canada

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Latitude & Longitude (WGS84): 49° 9' 19'' North , 85° 47' 22'' West
Latitude & Longitude (decimal): 49.15528,-85.78944
GeoHash:G#: f0dzxu6n1
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate


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).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


37 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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
Reference: ontariominerals.com
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Canadian Mineralogist 31, 695; 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.
'Albite-Anorthite Series'
Reference: Canadian Journal of Earth Sciences, 1992, 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.
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Can Mineral February 1997 v. 35 no. 1 p. 105-118
Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Economic Geology April 1986 v. 81 no. 2 p. 323-342
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Reference: 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; Satterly, J. (1977) A Catalogue of the Ontario Localities Represented by the Mineral Collection of the Royal Ontario Museum; Ontario Geological Survey Miscellaneous Paper MP70,464p.
'Bastnäsite'
Reference: Can Mineral February 1997 v. 35 no. 1 p. 105-118
'Biotite'
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; 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; Canadian Journal of Earth Sciences, 1992, 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
Reference: Canadian Journal of Earth Sciences, 1992, 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.
Cassiterite
Formula: SnO2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; 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; Economic Geology April 1986 v. 81 no. 2 p. 323-342
Chalcopyrite
Formula: CuFeS2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Can Mineral 1982 20: 549-553.; 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; Jas. E. Thomson and S. A. Ferguson, W. G. Q. Johnston, E. G. Pye, W. S. Savage, and Robert Thomson (1957) Metal Resources Circular No. 2 OF THE ONTARIO DEPARTMENT OF MINES Copper, Nickel, Lead, and Zinc Deposits in Ontario (Revised to February, 1957)
'Chlorite Group'
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Can Mineral 1982 20: 549-553.; 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; Canadian Journal of Earth Sciences, 1992, 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.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: ontariominerals.com; Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; Can Mineral 1982 20: 549-553.; 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; Economic Geology April 1986 v. 81 no. 2 p. 323-342
Corundum
Formula: Al2O3
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Economic Geology April 1986 v. 81 no. 2 p. 323-342
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388; Economic Geology April 1986 v. 81 no. 2 p. 323-342; Can Mineral February 1997 v. 35 no. 1 p. 105-118 ; 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.
Ferro-actinolite
Formula: ☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Ferro-edenite
Formula: {Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Ferronigerite-2N1S
Formula: (Al,Fe,Zn)2(Al,Sn)6O11(OH)
Reference: ontariominerals.com; Can Mineral 1982 20: 549-553.
Gahnite
Formula: ZnAl2O4
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Can Mineral 1982 20: 549-553.; 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; Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Galena
Formula: PbS
Reference: 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
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Gedrite
Formula: ☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; 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; Economic Geology April 1986 v. 81 no. 2 p. 323-342
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Hercynite
Formula: Fe2+Al2O4
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360
'Högbomite'
Formula: (Mg,Fe)2(Al,Ti)5O10
Reference: ontariominerals.com; Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; Can Mineral 1982 20: 549-553.
'Hornblende'
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Ilmenite
Formula: Fe2+TiO3
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360
'K Feldspar'
Reference: Canadian Journal of Earth Sciences, 1992, 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.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360
Microcline
Formula: K(AlSi3O8)
Reference: Stevenson, R.K. and Martin, R.F. (1986) Implications of the presence of amazonite in the Broken Hill and Geco metamorphosed sulfide deposits. Canadian Mineralogist: 24: 729-745.
Microcline var: Amazonite
Formula: K(AlSi3O8)
Reference: Stevenson, R.K. and Martin, R.F. (1986) Implications of the presence of amazonite in the Broken Hill and Geco metamorphosed sulfide deposits. Canadian Mineralogist: 24: 729-745.
'Monazite'
Reference: Can Mineral February 1997 v. 35 no. 1 p. 105-118
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Can Mineral 1982 20: 549-553.; 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
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Can Mineral 1982 20: 549-553.; Economic Geology April 1986 v. 81 no. 2 p. 323-342
Pyrite
Formula: FeS2
Reference: Michael W. Kieron Collection; Can Mineral 1982 20: 549-553.; 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; Jas. E. Thomson and S. A. Ferguson, W. G. Q. Johnston, E. G. Pye, W. S. Savage, and Robert Thomson (1957) Metal Resources Circular No. 2 OF THE ONTARIO DEPARTMENT OF MINES Copper, Nickel, Lead, and Zinc Deposits in Ontario (Revised to February, 1957); 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.
Pyrosmalite-(Fe)
Formula: Fe2+8Si6O15(OH,Cl)10
Reference: Canadian Mineralogist 31, 695; Canadian Journal of Earth Sciences, 1992, 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.
Pyrosmalite-(Mn)
Formula: Mn2+8Si6O15(OH,Cl)10
Reference: Canadian Mineralogist 31, 695; 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.
Pyrrhotite
Formula: Fe7S8
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: 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; Jas. E. Thomson and S. A. Ferguson, W. G. Q. Johnston, E. G. Pye, W. S. Savage, and Robert Thomson (1957) Metal Resources Circular No. 2 OF THE ONTARIO DEPARTMENT OF MINES Copper, Nickel, Lead, and Zinc Deposits in Ontario (Revised to February, 1957)
Quartz
Formula: SiO2
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388
Rutile
Formula: TiO2
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; Economic Geology April 1986 v. 81 no. 2 p. 323-342
Sillimanite
Formula: Al2(SiO4)O
Reference: 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
'Skarn'
Reference: 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.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: 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.
Sphalerite
Formula: ZnS
Reference: 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; Canadian Journal of Earth Sciences, 1992, 29(7): 1375-1388; Jas. E. Thomson and S. A. Ferguson, W. G. Q. Johnston, E. G. Pye, W. S. Savage, and Robert Thomson (1957) Metal Resources Circular No. 2 OF THE ONTARIO DEPARTMENT OF MINES Copper, Nickel, Lead, and Zinc Deposits in Ontario (Revised to February, 1957); 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.
Reference: Contributions to Mineralogy and Petrology Volume 101, Number 3 / March, 1989 Pages 350-360; Can Mineral 1982 20: 549-553.; Economic Geology April 1986 v. 81 no. 2 p. 323-342
Sudoite
Formula: Mg2Al3(Si3Al)O10)(OH)8
Reference: ontariominerals.com; Canadian Mineralogist Vol. 30,pp. 1127-1142 (1992)
Thaumasite
Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Reference: Michael W. Kieron Collection
Titanite
Formula: CaTi(SiO4)O
Reference: Can Mineral February 1997 v. 35 no. 1 p. 105-118
'UM1983-19-SiO:AlH'
Formula: (Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5
Reference: 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; in: Dunn, P.J., Grice, J.D., Fleischer, M., Pabst, A. (1984): New mineral names. American Mineralogist: 69: 213
'UM1983-20-SiO:AlH'
Formula: Al2Si2O7•4H2O
Reference: 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; in: Dunn, P.J., Grice, J.D., Fleischer, M., Pabst, A. (1984): New mineral names. American Mineralogist: 69: 213
'UM1983-21-SiO:AlH'
Formula: Al1.25-2Si1-1.2O5•0-0.3H2O
Reference: 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; in: Dunn, P.J., Grice, J.D., Fleischer, M., Pabst, A. (1984): New mineral names. American Mineralogist: 69: 213
Zircon
Formula: Zr(SiO4)
Description: Occurs in an Archean Cu-Zn massive sulfide deposit.
Reference: Can Mineral 1982 20: 549-553.; Can Mineral February 1997 v. 35 no. 1 p. 105-118

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Acanthite'2.BA.35Ag2S
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Corundum4.CB.05Al2O3
Ferronigerite-2N1S4.FC.20(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Gahnite4.BB.05ZnAl2O4
Hercynite4.BB.05Fe2+Al2O4
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
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
'Actinolite'9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Anthophyllite9.DE.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ferro-actinolite9.DE.10☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Ferro-edenite9.DE.15{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Gedrite9.DD.05☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Hastingsite9.DE.15{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Microcline9.FA.30K(AlSi3O8)
var: Amazonite9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Pyrosmalite-(Fe)9.EE.10Fe2+8Si6O15(OH,Cl)10
Pyrosmalite-(Mn)9.EE.10Mn2+8Si6O15(OH,Cl)10
Sillimanite9.AF.05Al2(SiO4)O
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Sudoite9.EC.55Mg2Al3(Si3Al)O10)(OH)8
Titanite9.AG.15CaTi(SiO4)O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Bastnäsite-
Biotite-
Chlorite Group-
Garnet Group-X3Z2(SiO4)3
Hornblende-
Högbomite-(Mg,Fe)2(Al,Ti)5O10
K Feldspar-
Monazite-
Skarn-
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 arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Cassiterite4.4.1.5SnO2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Gahnite7.2.1.4ZnAl2O4
Hercynite7.2.1.3Fe2+Al2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Miscellaneous
Ferronigerite-2N1S7.11.8.2(Al,Fe,Zn)2(Al,Sn)6O11(OH)
'Högbomite'7.11.7.3(Mg,Fe)2(Al,Ti)5O10
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 32 - COMPOUND SULFATES
Hydrated Compound Sulfates containing Hydroxyl or Halogen
Thaumasite32.4.4.4Ca3(SO4)[Si(OH)6](CO3) · 12H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Anthophyllite66.1.2.1☐{Mg2}{Mg5}(Si8O22)(OH)2
Gedrite66.1.2.5☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Sudoite71.4.1.3Mg2Al3(Si3Al)O10)(OH)8
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-, 6-, and 12-membered rings
Pyrosmalite-(Fe)72.4.1a.1Fe2+8Si6O15(OH,Cl)10
Pyrosmalite-(Mn)72.4.1a.2Mn2+8Si6O15(OH,Cl)10
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Bastnäsite'-
'Biotite'-
'Chlorite Group'-
Ferro-actinolite-☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Ferro-edenite-{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
'Garnet Group'-X3Z2(SiO4)3
Hastingsite-{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
'Hornblende'-
'K Feldspar'-
Microcline
var: Amazonite
-K(AlSi3O8)
'Monazite'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
'Skarn'-
'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 Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
H Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
H Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
H Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
H Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
H Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H StauroliteFe22+Al9Si4O23(OH)
H SudoiteMg2Al3(Si3Al)O10)(OH)8
H ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
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 CalciteCaCO3
C ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
OOxygen
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O Microcline (var: Amazonite)K(AlSi3O8)
O AndraditeCa3Fe23+(SiO4)3
O Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
O CalciteCaCO3
O CassiteriteSnO2
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O CorundumAl2O3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
O Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
O Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
O GahniteZnAl2O4
O Garnet GroupX3Z2(SiO4)3
O Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
O Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
O HercyniteFe2+Al2O4
O Högbomite(Mg,Fe)2(Al,Ti)5O10
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
O Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
O QuartzSiO2
O RutileTiO2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
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 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
O ZirconZr(SiO4)
NaSodium
Na Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Na Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Mg Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Mg Högbomite(Mg,Fe)2(Al,Ti)5O10
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SudoiteMg2Al3(Si3Al)O10)(OH)8
AlAluminium
Al Microcline (var: Amazonite)K(AlSi3O8)
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al CorundumAl2O3
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Al Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Al GahniteZnAl2O4
Al Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Al Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Al HercyniteFe2+Al2O4
Al Högbomite(Mg,Fe)2(Al,Ti)5O10
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al SillimaniteAl2(SiO4)O
Al SpessartineMn32+Al2(SiO4)3
Al StauroliteFe22+Al9Si4O23(OH)
Al SudoiteMg2Al3(Si3Al)O10)(OH)8
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 Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si Microcline (var: Amazonite)K(AlSi3O8)
Si AndraditeCa3Fe23+(SiO4)3
Si Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Si Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Si Garnet GroupX3Z2(SiO4)3
Si Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Si Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Si Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
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 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
Si ZirconZr(SiO4)
SSulfur
S AcanthiteAg2S
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
S ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
ClChlorine
Cl Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
KPotassium
K Microcline (var: Amazonite)K(AlSi3O8)
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
K Muscovite (var: Sericite)KAl2(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{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Ca Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Ca Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Ca ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti Högbomite(Mg,Fe)2(Al,Ti)5O10
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 ChalcopyriteCuFeS2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Fe Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Fe Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Fe Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Fe HercyniteFe2+Al2O4
Fe Högbomite(Mg,Fe)2(Al,Ti)5O10
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe Pyrosmalite-(Fe)Fe82+Si6O15(OH,Cl)10
Fe PyrrhotiteFe7S8
Fe StauroliteFe22+Al9Si4O23(OH)
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
Zn GahniteZnAl2O4
Zn SphaleriteZnS
ZrZirconium
Zr ZirconZr(SiO4)
AgSilver
Ag AcanthiteAg2S
SnTin
Sn CassiteriteSnO2
Sn Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)
PbLead
Pb GalenaPbS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoarchean
2500 - 2800 Ma



ID: 3189508
Archean volcanic rocks

Age: Neoarchean (2500 - 2800 Ma)

Lithology: Mafic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 613830
Metasedimentary rocks

Age: Archean (2500 - 3200 Ma)

Comments: Superior Province

Lithology: Wacke, siltstone, arkose, argillite, slate, mudstone, marble, chert, iron formation, minor metavolcanic rocks, conglomerate, arenite, paragneiss, migmatites

Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Canadian Mineralogist (1982): 20: 549-553.
Petersen, E. U. (1986). Tin in volcanogenic massive sulfide deposits; an example from the Geco Mine, Manitouwadge District, Ontario, Canada. Economic Geology, 81(2), 323-342.
Stevenson, R.K. and Martin, R.F. (1986) Implications of the presence of amazonite in the Broken Hill and Geco metamorphosed sulfide deposits. Canadian Mineralogist: 24: 729-745.
Ann P.Sabina (1991), Rocks and Minerals for the Collector, Sudbury to Winnipeg. GSC Misc. Report 49. p.83
Contributions to Mineralogy and Petrology (1989): 101(3)(March): 350-360.
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


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