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Cogne Mines, Cogne, Aosta Valley, Italyi
Regional Level Types
Cogne MinesGroup of Mines
CogneMunicipality
Aosta ValleyAutonomous 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:
PlacePopulationDistance
Gimillan209 (2015)0.7km
Cogne767 (2014)1.2km
Epinel265 (2014)2.4km
Valsavarenche180 (2012)11.2km
Charvensod738 (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-, ±chrysotile-bearing serpentinite showing a pseudomorphic texture after oceanic peridotite. It contains fine-grained magnetite showing oscillatory zoning with Cr-poor cores (∼ 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 (∼2.0 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).



Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

36 valid minerals.

Rock Types Recorded

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

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Andradite
Formula: Ca3Fe3+2(SiO4)3
β“˜ Andradite var. Hydroandradite
Formula: Ca3Fe3+2(SiO4)3-x(OH)4x
β“˜ Antigorite
Formula: Mg3(Si2O5)(OH)4
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Aragonite
Formula: CaCO3
β“˜ Artinite
Formula: Mg2(CO3)(OH)2 · 3H2O
β“˜ 'Asbestos'
β“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Brucite
Formula: Mg(OH)2
β“˜ Brugnatellite
Formula: Mg6Fe3+(CO3)(OH)13 · 4H2O
β“˜ Calcite
Formula: CaCO3
β“˜ Chalcocite
Formula: Cu2S
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ Chondrodite
Formula: Mg5(SiO4)2F2
β“˜ 'Chrome-Spinel (of Dana)'
β“˜ Chromite
Formula: Fe2+Cr3+2O4
β“˜ Chrysotile
Formula: Mg3(Si2O5)(OH)4
β“˜ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
β“˜ Clinohumite
Formula: Mg9(SiO4)4F2
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ 'Fayalite-Forsterite Series'
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
β“˜ Linnaeite
Formula: Co2+Co3+2S4
β“˜ Lizardite
Formula: Mg3(Si2O5)(OH)4
β“˜ Magnesite
Formula: MgCO3
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
β“˜ Nesquehonite
Formula: MgCO3 · 3H2O
β“˜ 'Orthopyroxene Subgroup'
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
β“˜ Pigeonite ?
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
β“˜ 'Serpentine Subgroup var. Bastite'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
β“˜ Sphalerite
Formula: ZnS
β“˜ Talc
Formula: Mg3Si4O10(OH)2
β“˜ 'Titanclinohumite'
Formula: Mg9(SiO4)4(F,OH)2
β“˜ Uraninite
Formula: UO2
β“˜ Wollastonite
Formula: Ca3(Si3O9)
β“˜ 'Xenotime'

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
β“˜Chalcocite2.BA.05Cu2S
β“˜Bornite2.BA.15Cu5FeS4
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Linnaeite2.DA.05Co2+Co3+2S4
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Chromite4.BB.05Fe2+Cr3+2O4
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Uraninite4.DL.05UO2
β“˜Brucite4.FE.05Mg(OH)2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Magnesite5.AB.05MgCO3
β“˜Dolomite5.AB.10CaMg(CO3)2
β“˜Aragonite5.AB.15CaCO3
β“˜Nesquehonite5.CA.05MgCO3 Β· 3H2O
β“˜Lansfordite5.CA.10MgCO3 Β· 5H2O
β“˜Hydromagnesite5.DA.05Mg5(CO3)4(OH)2 Β· 4H2O
β“˜Artinite5.DA.10Mg2(CO3)(OH)2 Β· 3H2O
β“˜Brugnatellite5.DA.45Mg6Fe3+(CO3)(OH)13 Β· 4H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Melanterite7.CB.35Fe2+(H2O)6SO4 Β· H2O
Group 9 - Silicates
β“˜Chrysotile9..Mg3(Si2O5)(OH)4
β“˜Forsterite9.AC.05Mg2SiO4
β“˜Andradite9.AD.25Ca3Fe3+2(SiO4)3
β“˜var. Hydroandradite9.AD.25Ca3Fe3+2(SiO4)3-x(OH)4x
β“˜Chondrodite9.AF.45Mg5(SiO4)2F2
β“˜Clinohumite9.AF.55Mg9(SiO4)4F2
β“˜Pigeonite ?9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Wollastonite9.DG.05Ca3(Si3O9)
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
β“˜Lizardite9.ED.15Mg3(Si2O5)(OH)4
β“˜Antigorite9.ED.15Mg3(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

HHydrogen
Hβ“˜ AntigoriteMg3(Si2O5)(OH)4
Hβ“˜ ArtiniteMg2(CO3)(OH)2 · 3H2O
Hβ“˜ BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
Hβ“˜ BruciteMg(OH)2
Hβ“˜ ChrysotileMg3(Si2O5)(OH)4
Hβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ Andradite var. HydroandraditeCa3Fe23+(SiO4)3-x(OH)4x
Hβ“˜ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Hβ“˜ LansforditeMgCO3 · 5H2O
Hβ“˜ LizarditeMg3(Si2O5)(OH)4
Hβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Hβ“˜ NesquehoniteMgCO3 · 3H2O
Hβ“˜ TalcMg3Si4O10(OH)2
Hβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Hβ“˜ TitanclinohumiteMg9(SiO4)4(F,OH)2
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cβ“˜ AragoniteCaCO3
Cβ“˜ ArtiniteMg2(CO3)(OH)2 · 3H2O
Cβ“˜ BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
Cβ“˜ CalciteCaCO3
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ GraphiteC
Cβ“˜ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Cβ“˜ LansforditeMgCO3 · 5H2O
Cβ“˜ MagnesiteMgCO3
Cβ“˜ NesquehoniteMgCO3 · 3H2O
OOxygen
Oβ“˜ AndraditeCa3Fe23+(SiO4)3
Oβ“˜ AntigoriteMg3(Si2O5)(OH)4
Oβ“˜ AragoniteCaCO3
Oβ“˜ ArtiniteMg2(CO3)(OH)2 · 3H2O
Oβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
Oβ“˜ BruciteMg(OH)2
Oβ“˜ CalciteCaCO3
Oβ“˜ ChrysotileMg3(Si2O5)(OH)4
Oβ“˜ ChondroditeMg5(SiO4)2F2
Oβ“˜ ChromiteFe2+Cr23+O4
Oβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Oβ“˜ ClinohumiteMg9(SiO4)4F2
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ Andradite var. HydroandraditeCa3Fe23+(SiO4)3-x(OH)4x
Oβ“˜ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Oβ“˜ LansforditeMgCO3 · 5H2O
Oβ“˜ LizarditeMg3(Si2O5)(OH)4
Oβ“˜ MagnesiteMgCO3
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Oβ“˜ NesquehoniteMgCO3 · 3H2O
Oβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ UraniniteUO2
Oβ“˜ WollastoniteCa3(Si3O9)
Oβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Oβ“˜ TitanclinohumiteMg9(SiO4)4(F,OH)2
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ ChondroditeMg5(SiO4)2F2
Fβ“˜ ClinohumiteMg9(SiO4)4F2
Fβ“˜ TitanclinohumiteMg9(SiO4)4(F,OH)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgβ“˜ AntigoriteMg3(Si2O5)(OH)4
Mgβ“˜ ArtiniteMg2(CO3)(OH)2 · 3H2O
Mgβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
Mgβ“˜ BruciteMg(OH)2
Mgβ“˜ ChrysotileMg3(Si2O5)(OH)4
Mgβ“˜ ChondroditeMg5(SiO4)2F2
Mgβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgβ“˜ ClinohumiteMg9(SiO4)4F2
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Mgβ“˜ LansforditeMgCO3 · 5H2O
Mgβ“˜ LizarditeMg3(Si2O5)(OH)4
Mgβ“˜ MagnesiteMgCO3
Mgβ“˜ NesquehoniteMgCO3 · 3H2O
Mgβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ TalcMg3Si4O10(OH)2
Mgβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mgβ“˜ TitanclinohumiteMg9(SiO4)4(F,OH)2
AlAluminium
Alβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Alβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Siβ“˜ AndraditeCa3Fe23+(SiO4)3
Siβ“˜ AntigoriteMg3(Si2O5)(OH)4
Siβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ ChrysotileMg3(Si2O5)(OH)4
Siβ“˜ ChondroditeMg5(SiO4)2F2
Siβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Siβ“˜ ClinohumiteMg9(SiO4)4F2
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ Andradite var. HydroandraditeCa3Fe23+(SiO4)3-x(OH)4x
Siβ“˜ LizarditeMg3(Si2O5)(OH)4
Siβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ WollastoniteCa3(Si3O9)
Siβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Siβ“˜ TitanclinohumiteMg9(SiO4)4(F,OH)2
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ BorniteCu5FeS4
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ChalcociteCu2S
Sβ“˜ LinnaeiteCo2+Co23+S4
Sβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ SphaleriteZnS
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Caβ“˜ AndraditeCa3Fe23+(SiO4)3
Caβ“˜ AragoniteCaCO3
Caβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ CalciteCaCO3
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ Andradite var. HydroandraditeCa3Fe23+(SiO4)3-x(OH)4x
Caβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ WollastoniteCa3(Si3O9)
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CrChromium
Crβ“˜ ChromiteFe2+Cr23+O4
MnManganese
Mnβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Feβ“˜ AndraditeCa3Fe23+(SiO4)3
Feβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ BorniteCu5FeS4
Feβ“˜ BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2O
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ ChromiteFe2+Cr23+O4
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ Andradite var. HydroandraditeCa3Fe23+(SiO4)3-x(OH)4x
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
CoCobalt
Coβ“˜ LinnaeiteCo2+Co23+S4
NiNickel
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
Niβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChalcociteCu2S
ZnZinc
Znβ“˜ SphaleriteZnS
Znβ“˜ Serpentine Subgroup var. BastiteD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
UUranium
Uβ“˜ UraniniteUO2

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