Prism of gabbro from Madagascar (2.7kg) on brass base
        
    
    
            
    
        
    
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            Serie of 6 agate slices on brass cubic stand
        
    
    
            
    
        
    
            Tin and lead explosion from Paris roofs under glass globe
        
    
    
            
    
        
    
            Tin and lead explosion from Paris roofs under glass
        
    
    
            
    
        
    
            Cubic Pyrite on slate -  St Créac (France)
        
    
    
            
    
        
    
            Gypsum from France (465g.) on black base
        
    
    
            
    
        
    
            Menilite Opal of agramon, Spain in matrix. 680gr.
        
    
    
            
    
        
    
 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                 
                                                                 
            
                                                                                                                                                