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  Sample n° 6877
          Minerals found in the sample
          
            
	       
                
           
 
        
        
      
         | Mineral | Formula | Category | Subcategory | Importance | 
|---|---|---|---|---|
| PIEMONTITE | Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH) | sorosilicates | epidote | major | 
           Description
            
       
           
    
               Description:
               calcite pervaded by purple prismatic crystals (1 cm)
            
                         
                Information:
                specimen from type locality
                        
     
      Origin
    
   
  
    - Country: Italy
 - Region: Piemonte
 - Locality: St Marcel
 
        Specification
    
    
      
    
 
    
  - 
          Donors: PolinardDonation year: 1954
 - 
          Sampling year:Registration date:
 - 
          Quantity: 1Size: 2
 
- 
          Dimension code 1>2>3: 2Quality code 1>2>3: 1
 - 
          Holotype: noParatype: noRadioactive: no
 - 
          Thin section: noChemical analysis: noX-Ray spectra: no