Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (6 online) Mindat Auctions

Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium

StandardDetailedBy ChemistryMineral Photos (28)Site Photos (1)Search Google

Quartz vein cutting Upper Salmian (Ordovician) Mn-rich metapelites (phyllades) (Hercynian metamorphism).
South Border of Stavelot Massif.





References:
- Pasero M., Reinecke T., Fransolet A. M. (1994): Crystal structure refinements and compositional control of Mn-Mg-Ca ardennites from the Belgian Ardennes, Greece, and the Western Alps. N. Jb. Miner., Abh., 166, 137-167.





Mineral List:
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Colour: Blue
    Description: Hercynian metamorphism : 1-2 kb, 380°C.
    Reference: [A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143.]
  		•  'Andalusite-Kanonaite Series'
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Ardennite-(As)
    Mn
    2+
    4
    		[(Al,Mg)
     
    6
    		][(OH)
     
    6
    		|(AsO
     
    4
    		,VO
     
    4
    		)|(SiO
     
    4
    		)
     
    2
    		|Si
     
    3
    		O
     
    10
    		]
    Reference: [Ann.Mines, 4th ser. (1842) 2, 357]
  		•  Carpholite
    Mn
    2+
     
    		Al
     
    2
    		[(OH)
     
    4
    		|Si
     
    2
    		O
     
    6
    		]
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  'Chlorite Group'
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Chloritoid
    (Fe
    2+
     
    		,Mg,Mn
    2+
     
    		)Al
     
    2
    		[O|(OH)
     
    2
    		|SiO
     
    4
    		]
    Description: Hercynian metamorphism : 1-2 kb, 380°C.
    Reference: [A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143.]
  		•  Davreuxite (TL)
    MnAl
     
    6
    		Si
     
    4
    		O
     
    17
    		(OH)
     
    2
    Type Locality: Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    Reference: [Bull.Acad.roy.Sci.Belg., 2nd ser.(1876) 46, 240-245]
    Site Photo
    Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    © JDehove
  		•  Dickite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143.]
  		•  Euclase
    BeAl[OH|SiO
     
    4
    		]
    Description: Association with Pyrophyllite, ottrelite and davreuxite.
    Reference: [A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143.]
  		•  Gahnite
    ZnAl
     
    2
    		O
     
    4
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [No reference listed]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Kaolinite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [No reference listed]
  		•  'Mica Group'
    Reference: [No reference listed]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Description: Existence of mixed-layer muscovite/paragonite. Hercynian metamorphism : 1-2 kb, 380°C.
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Ottrélite (TL)
    (Mn
    2+
     
    		,Fe
    2+
     
    		,Mg)Al
     
    2
    		[O|(OH)
     
    2
    		|SiO
     
    4
    		]
    Type Locality: Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    Reference: [Ann.Mines, 4th ser. (1842) 2, 357]
    Site Photo
    Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    © JDehove
  		•  Paragonite
    NaAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Pyrophyllite
    Al
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [No reference listed]
  		•  Quartz
    SiO
     
    2
    Reference: [No reference listed]
  		•  Quartz
    var: Smoky Quartz
    SiO
     
    2
    Reference: [Harjo Neutkens collection]
  		•  Rutile
    TiO
     
    2
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Description: Hercynian metamorphism : 1-2 kb, 380°C.
    Reference: [Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 ]
  		•  Sudoite
    (Mg,Fe
    2+
     
    		)
     
    2
    		Al
     
    3
    		[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [http://rruff.geo.arizona.edu/doclib/hom/sudoite.pdf]
    Site Photo
    Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    © C.Boutry
  		•  Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    Reference: [Harjo Neutkens]
    Site Photo
    Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    © Harjo
  		•  'Tourmaline'
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z
    Reference: [No reference listed]
  		•  Turquoise
    Cu(Al,Fe
    3+
     
    		)
     
    6
    		[(OH)
     
    4
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 4H
     
    2
    		O
    Reference: [Harjo Neutkens]
    Site Photo
    Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
    © Harjo
  		•  Vantasselite
    Al
     
    4
    		[OH|PO
     
    4
    		]
     
    3
    		 · 9H
     
    2
    		O
    Reference: [A. Van Herreweghe collection]
  		•  Wavellite
    Al
     
    3
    		[(OH,F)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 5H
     
    2
    		O
    Reference: [A. Van Herreweghe collection]


    28 entries listed. 22 valid minerals. 2 type localities (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: 15th Nov 2009 04:14:59