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  Sample n° 5466
          Minerals found in the sample
          
            
	       
                
           
 
        
        
      
         | Mineral | Formula | Category | Subcategory | Importance | 
|---|---|---|---|---|
| BIOTITE | K(Fe2+,Mg)3(AlSi3O10)(OH)2 | phyllosilicates | mica | major | 
           Description
            
       
           
    
               Description:
               large crystals (30 cm)
            
                         
                Information:
                Rouxhet, P.G. & Fripiat, J.J., 1966. Influence du traitement thermique d'un mica (biotite) sur l'adsorption des gaz rares argon et krypton. Bulletin du Groupe Français des Argiles 17, 81-92.  //  Rouxhet, P.G., Herbillon, A. & Fripiat, J.J., 1966. Note sur la rélation entre la vermiculitisation des micas et l'orientation des dipôles OH. Bulletin du Groupe Français des Argiles 18, 3-9.  //  Rouxhet, P.G., 1970. Kinetics of dehydroxylation and of OH-OD exchange in macrocrystalline micas. American Mineralogist 55, 841-853.  //  Rouxhet, P.G., 1970. Hydroxyl stretching bands in micas : a quantitative interpretation. Clay Minerals 8, 375-388.  //  Rouxhet, P.G. & Fripiat, J.J., 1971. Effet de la température sur l'intensité apparente des bandes de vibration de valence OH de solides inorganiques. Bulletin de la Classe des Sciences, Académie Royale de Belgique, 57, 101-124.  //  Rousseaux, J.M., Gomez Laverde, C., Nathan, Y. & Rouxhet, P.G., 1972. Correlation between stretching bands and the chemical composition of trioctahedral micas. In Serratosa, J.M. (ed.), Proceedings of the International Clay Conference, Madrid. CSIC, Madrid, pp. 89-98.  //  Rousseaux, J.M., Rouxhet, P.G., Vielvoye, L.A. & Herbillon, A.J., 1973. The vermiculitization of trioctahedral micas. I. The K level and its correlation with chemical composition. Clay Minerals 10, 1-16.  //  geochronology - Cahen, L. & Snelling, N.J., 1966. The Geochronology of Equatorial Africa. North-Holland Publishing Company, Amsterdam, 195 pp. (Monteyne-Poulaert, unpublished data)
                        
     
      Origin
    
   
  
    - Country: Congo (RDC)
- Region: Kivu
- Locality: Masisi, Luindi
        Specification
    
    
      
    
 
    
  - 
          Donors: MGLDonation year: 1955
- 
          Sampling year:Registration date:
- 
          Quantity: 2Size: 1
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          Dimension code 1>2>3: 2Quality code 1>2>3: 1
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          Holotype: noParatype: noRadioactive: no
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          Thin section: noChemical analysis: noX-Ray spectra: no