Cogne Mines, Cogne, Aosta Valley, Italyi
Regional Level Types | |
---|---|
Cogne Mines | Group of Mines |
Cogne | Municipality |
Aosta Valley | Autonomous Region |
Italy | - not defined - |
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Latitude & Longitude (WGS84):
45° 37' North , 7° 21' East
Latitude & Longitude (decimal):
Type:
Group of Mines
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Gimillan | 209 (2015) | 0.7km |
Cogne | 767 (2014) | 1.2km |
Epinel | 265 (2014) | 2.4km |
Valsavarenche | 180 (2012) | 11.2km |
Charvensod | 738 (2014) | 11.7km |
Mindat Locality ID:
72512
Long-form identifier:
mindat:1:2:72512:0
GUID (UUID V4):
c2a6c29c-5bd5-40aa-9562-e91eabc10a83
Name(s) in local language(s):
Miniere di Cogne, Cogne, Valle di Cogne, Valle d'Aosta, Italia
Old iron mines located above the Cogne village.
The most important mines are:
-Larcinaz / Larsinaz (1975-2025 m)
-Costa del Pino (2027 m)
-Colonna (2410 m)
-Liconi (2520 m)
The main exploited ore was magnetite of good quality for iron and steel industry from the Middle Ages to 1979..
In the Cogne area, magnetite mineralization occurs associated with different types of serpentinite (pseudomorphic, rodingitic and magnetite-rich serpentinites), which are also heterogeneous in terms of bulk chemical composition, mineral assemblage and mineral chemistry. The mineralization is hosted by a lizardite-, Β±chrysotile-bearing serpentinite showing a pseudomorphic texture after oceanic peridotite. It contains fine-grained magnetite showing oscillatory zoning with Cr-poor cores (βΌ 0.4 wt.% Cr2O3), which are surrounded by Cr-rich inner euhedral rims (up to 17.0 wt.% Cr2O3), mantled in turn by partially resorbed Cr-bearing outer rims (βΌ2.0 wt.% Cr2O3). In these rocks, lizardite, the primary serpentine phase, is partially overgrown by prograde antigorite, indicating that serpentinization occurred under relatively low-T conditions in a preorogenic (i.e., oceanic) setting, and was followed by an Alpine metamorphic re-equilibration. Rodingitic serpentinite and serpentinite rich in magnetite are composed of, in highly variable amounts, diopside (locally with inclusions of partially disordered graphite), calcite, magnetite, andradite/hydroandradite, prograde olivine, brucite and serpentine (mostly antigorite but also relict lizardite), with minor chlorite and accessory apatite. Magnetite content can be very high. In these rocks, magnetite is exceptionally Cr-poor (almost Cr-free).
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Mineral list contains entries from the region specified including sub-localities36 valid minerals.
Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
β Andradite Formula: Ca3Fe3+2(SiO4)3 Localities: |
β Andradite var. Hydroandradite Formula: Ca3Fe3+2(SiO4)3-x(OH)4x |
β Antigorite Formula: Mg3(Si2O5)(OH)4 Localities: |
β 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) Localities: |
β Aragonite Formula: CaCO3 |
β Artinite Formula: Mg2(CO3)(OH)2 · 3H2O |
β 'Asbestos' References: |
β Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
β Bornite Formula: Cu5FeS4 |
β Brucite Formula: Mg(OH)2 Localities: References: |
β Brugnatellite Formula: Mg6Fe3+(CO3)(OH)13 · 4H2O |
β Calcite Formula: CaCO3 Localities: |
β Chalcocite Formula: Cu2S |
β Chalcopyrite Formula: CuFeS2 |
β 'Chlorite Group' Localities: |
β Chondrodite Formula: Mg5(SiO4)2F2 Localities: |
β 'Chrome-Spinel (of Dana)' |
β Chromite Formula: Fe2+Cr3+2O4 Localities: |
β Chrysotile Formula: Mg3(Si2O5)(OH)4 References: |
β Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Localities: |
β Clinohumite Formula: Mg9(SiO4)4F2 |
β Diopside Formula: CaMgSi2O6 Localities: |
β Dolomite Formula: CaMg(CO3)2 |
β 'Fayalite-Forsterite Series' Localities: |
β Forsterite Formula: Mg2SiO4 |
β Goethite Formula: Ξ±-Fe3+O(OH) References: |
β Graphite Formula: C |
β Hydromagnesite Formula: Mg5(CO3)4(OH)2 · 4H2O |
β Lansfordite Formula: MgCO3 · 5H2O References: |
β Linnaeite Formula: Co2+Co3+2S4 |
β Lizardite Formula: Mg3(Si2O5)(OH)4 Localities: |
β Magnesite Formula: MgCO3 |
β Magnetite Formula: Fe2+Fe3+2O4 Localities: References: |
β Melanterite Formula: Fe2+(H2O)6SO4 · H2O |
β Nesquehonite Formula: MgCO3 · 3H2O References: |
β 'Orthopyroxene Subgroup' Localities: |
β Pentlandite Formula: (NixFey)Ξ£9S8 |
β Pigeonite ? Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
β Pyrrhotite Formula: Fe1-xS Localities: |
β 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 Localities: |
β 'Serpentine Subgroup var. Bastite' Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn Localities: |
β Sphalerite Formula: ZnS Localities: |
β Talc Formula: Mg3Si4O10(OH)2 Localities: References: |
β 'Titanclinohumite' Formula: Mg9(SiO4)4(F,OH)2 |
β Uraninite Formula: UO2 Localities: References: |
β Wollastonite Formula: Ca3(Si3O9) |
β 'Xenotime' |
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Graphite | 1.CB.05a | C |
Group 2 - Sulphides and Sulfosalts | |||
β | Chalcocite | 2.BA.05 | Cu2S |
β | Bornite | 2.BA.15 | Cu5FeS4 |
β | Pentlandite | 2.BB.15 | (NixFey)Ξ£9S8 |
β | Sphalerite | 2.CB.05a | ZnS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Pyrrhotite | 2.CC.10 | Fe1-xS |
β | Linnaeite | 2.DA.05 | Co2+Co3+2S4 |
Group 4 - Oxides and Hydroxides | |||
β | Goethite | 4.00. | Ξ±-Fe3+O(OH) |
β | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Uraninite | 4.DL.05 | UO2 |
β | Brucite | 4.FE.05 | Mg(OH)2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
β | Magnesite | 5.AB.05 | MgCO3 |
β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
β | Aragonite | 5.AB.15 | CaCO3 |
β | Nesquehonite | 5.CA.05 | MgCO3 Β· 3H2O |
β | Lansfordite | 5.CA.10 | MgCO3 Β· 5H2O |
β | Hydromagnesite | 5.DA.05 | Mg5(CO3)4(OH)2 Β· 4H2O |
β | Artinite | 5.DA.10 | Mg2(CO3)(OH)2 Β· 3H2O |
β | Brugnatellite | 5.DA.45 | Mg6Fe3+(CO3)(OH)13 Β· 4H2O |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
β | Melanterite | 7.CB.35 | Fe2+(H2O)6SO4 Β· H2O |
Group 9 - Silicates | |||
β | Chrysotile | 9.. | Mg3(Si2O5)(OH)4 |
β | Forsterite | 9.AC.05 | Mg2SiO4 |
β | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
β | var. Hydroandradite | 9.AD.25 | Ca3Fe3+2(SiO4)3-x(OH)4x |
β | Chondrodite | 9.AF.45 | Mg5(SiO4)2F2 |
β | Clinohumite | 9.AF.55 | Mg9(SiO4)4F2 |
β | Pigeonite ? | 9.DA.10 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
β | Diopside | 9.DA.15 | CaMgSi2O6 |
β | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
β | Wollastonite | 9.DG.05 | Ca3(Si3O9) |
β | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
β | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
β | Lizardite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
β | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
Unclassified | |||
β | 'Fayalite-Forsterite Series' | - | |
β | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
β | 'Orthopyroxene Subgroup' | - | |
β | 'Chrome-Spinel (of Dana)' | - | |
β | 'Asbestos' | - | |
β | 'Titanclinohumite' | - | Mg9(SiO4)4(F,OH)2 |
β | 'Xenotime' | - | |
β | 'Serpentine Subgroup var. Bastite' | - | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
β | 'Chlorite Group' | - | |
β | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Antigorite | Mg3(Si2O5)(OH)4 |
H | β Artinite | Mg2(CO3)(OH)2 · 3H2O |
H | β Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O |
H | β Brucite | Mg(OH)2 |
H | β Chrysotile | Mg3(Si2O5)(OH)4 |
H | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
H | β Goethite | Ξ±-Fe3+O(OH) |
H | β Andradite var. Hydroandradite | Ca3Fe23+(SiO4)3-x(OH)4x |
H | β Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
H | β Lansfordite | MgCO3 · 5H2O |
H | β Lizardite | Mg3(Si2O5)(OH)4 |
H | β Melanterite | Fe2+(H2O)6SO4 · H2O |
H | β Nesquehonite | MgCO3 · 3H2O |
H | β Talc | Mg3Si4O10(OH)2 |
H | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
H | β Titanclinohumite | Mg9(SiO4)4(F,OH)2 |
H | β Serpentine Subgroup | D3[Si2O5](OH)4 |
H | β Apatite | Ca5(PO4)3(Cl/F/OH) |
C | Carbon | |
C | β Aragonite | CaCO3 |
C | β Artinite | Mg2(CO3)(OH)2 · 3H2O |
C | β Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O |
C | β Calcite | CaCO3 |
C | β Dolomite | CaMg(CO3)2 |
C | β Graphite | C |
C | β Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
C | β Lansfordite | MgCO3 · 5H2O |
C | β Magnesite | MgCO3 |
C | β Nesquehonite | MgCO3 · 3H2O |
O | Oxygen | |
O | β Andradite | Ca3Fe23+(SiO4)3 |
O | β Antigorite | Mg3(Si2O5)(OH)4 |
O | β Aragonite | CaCO3 |
O | β Artinite | Mg2(CO3)(OH)2 · 3H2O |
O | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
O | β Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O |
O | β Brucite | Mg(OH)2 |
O | β Calcite | CaCO3 |
O | β Chrysotile | Mg3(Si2O5)(OH)4 |
O | β Chondrodite | Mg5(SiO4)2F2 |
O | β Chromite | Fe2+Cr23+O4 |
O | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
O | β Clinohumite | Mg9(SiO4)4F2 |
O | β Diopside | CaMgSi2O6 |
O | β Dolomite | CaMg(CO3)2 |
O | β Forsterite | Mg2SiO4 |
O | β Goethite | Ξ±-Fe3+O(OH) |
O | β Andradite var. Hydroandradite | Ca3Fe23+(SiO4)3-x(OH)4x |
O | β Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
O | β Lansfordite | MgCO3 · 5H2O |
O | β Lizardite | Mg3(Si2O5)(OH)4 |
O | β Magnesite | MgCO3 |
O | β Magnetite | Fe2+Fe23+O4 |
O | β Melanterite | Fe2+(H2O)6SO4 · H2O |
O | β Nesquehonite | MgCO3 · 3H2O |
O | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
O | β Talc | Mg3Si4O10(OH)2 |
O | β Uraninite | UO2 |
O | β Wollastonite | Ca3(Si3O9) |
O | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
O | β Titanclinohumite | Mg9(SiO4)4(F,OH)2 |
O | β Serpentine Subgroup | D3[Si2O5](OH)4 |
O | β Apatite | Ca5(PO4)3(Cl/F/OH) |
F | Fluorine | |
F | β Chondrodite | Mg5(SiO4)2F2 |
F | β Clinohumite | Mg9(SiO4)4F2 |
F | β Titanclinohumite | Mg9(SiO4)4(F,OH)2 |
F | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Mg | Magnesium | |
Mg | β Antigorite | Mg3(Si2O5)(OH)4 |
Mg | β Artinite | Mg2(CO3)(OH)2 · 3H2O |
Mg | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Mg | β Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O |
Mg | β Brucite | Mg(OH)2 |
Mg | β Chrysotile | Mg3(Si2O5)(OH)4 |
Mg | β Chondrodite | Mg5(SiO4)2F2 |
Mg | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
Mg | β Clinohumite | Mg9(SiO4)4F2 |
Mg | β Diopside | CaMgSi2O6 |
Mg | β Dolomite | CaMg(CO3)2 |
Mg | β Forsterite | Mg2SiO4 |
Mg | β Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
Mg | β Lansfordite | MgCO3 · 5H2O |
Mg | β Lizardite | Mg3(Si2O5)(OH)4 |
Mg | β Magnesite | MgCO3 |
Mg | β Nesquehonite | MgCO3 · 3H2O |
Mg | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Mg | β Talc | Mg3Si4O10(OH)2 |
Mg | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
Mg | β Titanclinohumite | Mg9(SiO4)4(F,OH)2 |
Al | Aluminium | |
Al | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
Al | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
Si | Silicon | |
Si | β Andradite | Ca3Fe23+(SiO4)3 |
Si | β Antigorite | Mg3(Si2O5)(OH)4 |
Si | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Si | β Chrysotile | Mg3(Si2O5)(OH)4 |
Si | β Chondrodite | Mg5(SiO4)2F2 |
Si | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
Si | β Clinohumite | Mg9(SiO4)4F2 |
Si | β Diopside | CaMgSi2O6 |
Si | β Forsterite | Mg2SiO4 |
Si | β Andradite var. Hydroandradite | Ca3Fe23+(SiO4)3-x(OH)4x |
Si | β Lizardite | Mg3(Si2O5)(OH)4 |
Si | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Si | β Talc | Mg3Si4O10(OH)2 |
Si | β Wollastonite | Ca3(Si3O9) |
Si | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
Si | β Titanclinohumite | Mg9(SiO4)4(F,OH)2 |
Si | β Serpentine Subgroup | D3[Si2O5](OH)4 |
P | Phosphorus | |
P | β Apatite | Ca5(PO4)3(Cl/F/OH) |
S | Sulfur | |
S | β Bornite | Cu5FeS4 |
S | β Chalcopyrite | CuFeS2 |
S | β Chalcocite | Cu2S |
S | β Linnaeite | Co2+Co23+S4 |
S | β Melanterite | Fe2+(H2O)6SO4 · H2O |
S | β Pentlandite | (NixFey)Ξ£9S8 |
S | β Pyrrhotite | Fe1-xS |
S | β Sphalerite | ZnS |
Cl | Chlorine | |
Cl | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Ca | Calcium | |
Ca | β Andradite | Ca3Fe23+(SiO4)3 |
Ca | β Aragonite | CaCO3 |
Ca | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Ca | β Calcite | CaCO3 |
Ca | β Diopside | CaMgSi2O6 |
Ca | β Dolomite | CaMg(CO3)2 |
Ca | β Andradite var. Hydroandradite | Ca3Fe23+(SiO4)3-x(OH)4x |
Ca | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Ca | β Wollastonite | Ca3(Si3O9) |
Ca | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Cr | Chromium | |
Cr | β Chromite | Fe2+Cr23+O4 |
Mn | Manganese | |
Mn | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
Fe | Iron | |
Fe | β Andradite | Ca3Fe23+(SiO4)3 |
Fe | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Fe | β Bornite | Cu5FeS4 |
Fe | β Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Chromite | Fe2+Cr23+O4 |
Fe | β Goethite | Ξ±-Fe3+O(OH) |
Fe | β Andradite var. Hydroandradite | Ca3Fe23+(SiO4)3-x(OH)4x |
Fe | β Magnetite | Fe2+Fe23+O4 |
Fe | β Melanterite | Fe2+(H2O)6SO4 · H2O |
Fe | β Pentlandite | (NixFey)Ξ£9S8 |
Fe | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Fe | β Pyrrhotite | Fe1-xS |
Fe | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
Co | Cobalt | |
Co | β Linnaeite | Co2+Co23+S4 |
Ni | Nickel | |
Ni | β Pentlandite | (NixFey)Ξ£9S8 |
Ni | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
Cu | Copper | |
Cu | β Bornite | Cu5FeS4 |
Cu | β Chalcopyrite | CuFeS2 |
Cu | β Chalcocite | Cu2S |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Zn | β Serpentine Subgroup var. Bastite | D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn |
U | Uranium | |
U | β Uraninite | UO2 |
Localities in this Region
- Aosta Valley
- Cogne
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Cogne Mines, Cogne, Aosta Valley, Italy