Nephrite cat’s eye and serpentine cat’s eye are very precious in jades and collection field.. Except for the Taiwan nephrite cat’s eye and California serpentine cat’s eye worldwide, the reports and studies about the two kinds of jades are very rare. This dissertation deals with the gemology and relative spectroscopy of these two cat’s eyes, which were newly found in the serpentine asbestos deposit in Shimian town, Sichuan province, southwest of China. Also, the mechanisms of thermal-transformati...