There is no doubt that Neishabour turquoise is unique in the world. But the thickness of the Neishabour turquoise layer is not so great and may not reach a millimeter! Pieces of thorns are usually seen behind the turquoise, indicating that the process of turning thorns into turquoise (under pressure and internal temperature) has stopped at some point. Therefore, the thorn stone is attached to the turquoise, and you cannot find a completely pure turquoise jewelry. For more information on Damghan Turquoise Stone, visit our site.