Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

La Chassagne, Saint-Just-près-Brioude, Brioude, Haute-Loire, Auvergne, France

StandardDetailedBy ChemistrySearch Google

Quartz breccias vein located between amphibolites and leptynites.
Situated along a path from road D12 to La Chassagne hamlet, 6 kilometers SW Brioude.





Mineral List:
  		•  Arsenopyrite
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
    Description: - In microbrecciated quartz (with pyrrhotite, pyrite and marcasite), brecciated later by stibnite quartz vein. - Automorph crystals in quartz-stibnite veins
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Baryte
    BaSO
     
    4
    Description: Late mineral, post-quartz, with unidentified Pb-Sb sulphosalts.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Berthierite
    FeSb
     
    2
    		S
     
    4
    Description: Gold-bearing berthierite. Replaced by stibnite.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Calcite
    CaCO
     
    3
    Description: Late veinlets in amphibolites
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Calcite
    var: Ferroan Calcite
    (Ca,Fe)CO
     
    3
    Description: Associated with berthierite.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Chalcopyrite
    CuFeS
     
    2
    Description: In amphibolites.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: []
  		•  Marcasite
    FeS
     
    2
    Description: - in microbrecciated quartz (with arsenopyrite, pyrrhotite and marcasite), brecciated later by stibnite quartz vein. - Automorph crystals in quartz-stibnite veins
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  'Melnikovite'
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Pyrite
    FeS
     
    2
    Description: - in amphibolites - in microbrecciated quartz (with arsenopyrite, pyrrhotite and marcasite), brecciated later by stibnite quartz vein. Epitactic pyrite crystals on marcasite lamellaes. - Automorph crystals in quartz-stibnite veins - Melnicovite facies, associated with late stibnite
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Description: - In microbrecciated quartz (with arsenopyrite, pyrite and marcasite), brecciated later by stibnite quartz vein. Replaced by pyrite-marcasite and encrusted by arsenopyrite. Gold content up to 0.03% of total rock.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Quartz
    SiO
     
    2
    Reference: []
  		•  Siderite
    FeCO
     
    3
    Description: Associated with berthierite.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Description: Early phase, prior to Sb mineralization.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Stibnite
    Sb
     
    2
    		S
     
    3
    Description: Two stages : - Early stibnite younger than berthierite - Late stibnite replacing berthierite and associated with melnicovite
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Description: In amphibolites.
    Reference: [P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989]
  		•  Valentinite
    Sb
     
    2
    		O
     
    3
    Reference: []


    17 entries listed. 15 valid minerals.

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
    This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 14th Nov 2009 21:19:15