
            
            By: magic-gigapans
            
              Image: Robin Rohrback, Mid-Atlantic Geo-Image Collection
                
            
            
              License:
                 Creative Commons Non Commercial ⧉
              
            
          
            Uploaded: 12 May 2020
            Last Updated: 1 Jun 2020
          
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Blue granite from Brazil. Aroldo Misi writes: "[P]robably this is from the famous dimension stone called 'Azul Bahia'. Azul Bahia is a sodalite-syenite from south of Bahia state, occurring mainly in the province called Itaju do Colonia. As far as I know it is aged ~730 Ma." Sample provided by Dr. Jay Kaufman at University of Maryland.