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The collection consists of natural sands from over fifty countries on the five continents. Use the links to  navigate the interactive map and find the places of origin.
                                                                   


    World                                                                                             Italy
                                                        
              
                                                                                                                            
 
   
 
                                                                    Contatti: polivierip@libero.it                      Pietro Olivieri web site