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  Sample n° 2479
          Minerals found in the sample
          
            
	       
                
           
 
        
        
      
         | Mineral | Formula | Category | Subcategory | Importance | 
|---|---|---|---|---|
| MICROCLINE | K(AlSi3O8) | tektosilicates | feldspar | major | 
           Description
            
       
           
    
               Description:
               green block with cleavage (9 cm), var. amazonite
            
                         
                Information:
                geochronology - Ledent, D., Lay, C. & Delhal, J., 1962. Premières données sur l'âge absolu des formations anciennes du 'socle' du Kasai (Congo méridional). Bulletin de la Société Belge de Géologie 71, 223-237.
                        
     
      Origin
    
   
  
    - Country: Congo (RDC)
- Region: Kasai
- Locality: Tshikapa river, Misanga creek
        Specification
    
    
      
    
 
    
  - 
          Donors: LepersonneDonation year:
- 
          Sampling year:Registration date:
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          Quantity: 1Size: 2
- 
          Dimension code 1>2>3: 3Quality code 1>2>3: 1
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          Holotype: noParatype: noRadioactive: no
- 
          Thin section: yesChemical analysis: noX-Ray spectra: no