Gemology[96 from 103] Zircon. blue (annealed). Crystal.    
 
            
                     
            
            The name, a brief visual description:
            Zircon.
            blue (annealed). Crystal.
            Sample size:
            Crystal. 1,7х,1х1,25 cm. 5,12 gr.
            Place of sampling:
            Cambodia.
                     
        