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  Sample n° 655
          Minerals found in the sample
          
            
	       
                
           
 
        
        
      
         | Mineral | Formula | Category | Subcategory | Importance | 
|---|---|---|---|---|
| BUTTGENBACHITE | Cu36(NO3)2Cl8(OH)62nH2O | nitrates | - | major | 
| LIKASITE | Cu3(NO3)(OH)52H2O | nitrates | - | major | 
| ATACAMITE | Cu2Cl(OH)3 | halides | - | minor | 
| BROCHANTITE | Cu4(SO4)(OH)6 | sulfates | - | minor | 
| CUPRITE | Cu2O | oxides and hydroxides | - | minor | 
           Description
            
       
           
    
               Description:
               geodes with blue needles (buttgenbachite) and blue tabular crystals (likasite)
            
                         
                Information:
                neotype of likasite (IMA Catalogue of Type Mineral Specimens)  //  Deliens, M., 1973. La likasite de Likasi (République du Zaïre). Bulletin de la Société Française de Minéralogie et de Cristallographie 96, 143-145.  //  Declercq, J.P., Germain, G. & Piret, P., 1977. Composition et structure de la likasite, Cu3P2H3(NO3)(OH)2.H2O. Acta Crystallographica B33, 1422-1427.  //  original publication - Schoep, A., Borchert, W. & Kohler, K., 1955. La likasite Cu12(OH)14(NO3)4(PO4)2, nouveau minéral. Bulletin de la Société Française de Minéralogie et de Cristallographie 78, 84-88.  //  buttgenbachite description - Schoep, A., 1927. Descrption de cristaux de quelques minéraux du Congo belge (linnéite, rutile, cassitérite, uraninite et buttgenbachite). Annales de la Société Géologique de Belgique 50, 216-222.  [letter from A. Schoep to L. de Dorlodot, June 27 1927, RMCA archive file DG 73]
                        
     
      Origin
    
   
  
    - Country: Congo (RDC)
- Region: Katanga
- Locality: Likasi
        Specification
    
    
      
    
 
    
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          Donors: UMHKDonation year: 1926
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          Sampling year:Registration date:
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          Quantity: 1Size: 2
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          Dimension code 1>2>3: 1Quality code 1>2>3: 1
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          Holotype: noParatype: yesRadioactive: no
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          Thin section: noChemical analysis: noX-Ray spectra: no