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Coma Fosca, Poblet Monastery, Vimbodí, Conca de Barberà, Tarragona, Catalonia, Spain

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Lower Silurian (Lower Llandoverian) sedex-type deposit and isochemical metamorphism of V/Cr-rich sediments.

Metasediments are massive anorthite layers interbedded with cherts, phosphates beds, sulfide-rich black shales, massive sulfide layers and calc-silicate beds.

Ore-bearing units form belts parallel to folds direction (NW-SE axes) (Hercynian orogeny).

V and Cr-bearing silicates are common in anorthite beds.

Sulfides (pyrrhotite and chalcopyrite) are disseminated within the metasediment layers.
V-Cr oxides, rutile and ilmenite are common in sulfide-rich shales.
Hercynian deformation and regional metamorphism are responsible for remobilization and formation of sulfide veinlets (galena, sphalerite, pyrite, chalcopyrite.).

Tardihercynian granitic intrusion and contact metamorphism induced recrystallization of previous mineralization : pd-bearing löllingite is replaced by arsenopyrite.

Contact metamorphism of V/Cr-rich shales results in formation of metapelic hornfels with V-rich aluminosilicates and V/Cr oxides.

Ref.:
C. Canet et al. (2003): The Canadian Mineralogist, 41, 581-595.





Mineral List:
  		•  Acanthite
    Ag
     
    2
    		S
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  'Allanite'
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Allanite-(Ce)
    {CaCe}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Almandine
    Fe
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Altaite
    PbTe
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  'Amphibole Group'
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Andalusite
    var: Chiastolite
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Anorthite
    Ca[Al
     
    2
    		Si
     
    2
    		O
     
    8
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  'Apatite'
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Armenite
    BaCa
     
    2
    		Al
     
    6
    		Si
     
    9
    		O
     
    30
    		·2H
     
    2
    		O
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Arsenopyrite
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Baryte
    BaSO
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Berdesinskiite
    V
    3+
    2
    		TiO
     
    5
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Biotite
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Bismuth
    Bi
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Calcite
    CaCO
     
    3
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  'Chlorite Group'
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Chromite
    FeCr
     
    2
    		O
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Clausthalite
    PbSe
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Cordierite
    (Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    5
    		O
     
    18
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Coulsonite
    FeV
     
    2
    		O
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Ferberite
    FeWO
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Ferrohornblende
    ☐[Ca
     
    2
    		][Fe
    2+
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Galena
    PbS
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Gold
    Au
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Goldmanite
    Ca
     
    3
    		(V
    3+
     
    		,Al,Fe
    3+
     
    		)
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  'Grandite'
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Hedenbergite
    CaFe
    2+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Hessite
    Ag
     
    2
    		Te
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Kaolinite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  'K Feldspar'
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Löllingite
    FeAs
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Magnesiohornblende
    ☐[Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Marcasite
    FeS
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Molybdenite
    MoS
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Monazite-(Ce)
    (Ce,La,Nd,Th)PO
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Petzite
    Ag
     
    3
    		AuTe
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Pyrite
    FeS
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
    Site Photo
    Coma Fosca, Poblet Monastery, Vimbodí, Conca de Barberà, Tarragona, Catalonia, Spain
    © Carlos Calvet
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Quartz
    SiO
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Rutile
    TiO
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Sphalerite
    var: Marmatite
    (Zn,Fe)S
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Thorianite
    ThO
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Tungstenite
    WS
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Uraninite
    UO
     
    2
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Xenotime-(Y)
    YPO
     
    4
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595]


    59 entries listed. 50 valid minerals.

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