 
              Specialising in rare and unusual fossils 
              from  around the world
               John Morris,  Proprietor  
             
                 
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                Petrified Wood
                
                  
                    Petrified Wood is a fossil in which the organic remains of wood have been   replaced by minerals and effectivelty turned to stone.    This petrification process generally results in a Quartz Chalcedony   mineralization. 
                       
                    For  living wood to be transformed into petrified wood it must have been buried in an  oxygen-free    environment. Exposure to mineral-rich water absorbed by the tissues replaces the organic   plant matter with inorganic stone. | 
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                    | The  structure   and  appearance of the orginal wood, (even the  tree rings) are  well preserved, even at the microscopic level.  This process can occur in less than one thousand years.  | 
                   
                 
                
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