China has got the reputation as a Jade Stone Country with a long history. The ancients considered it as the valuable treasure and worm it on themselves as a pendant. The ancient medical books stated that ˇ°Jade is the fine type among stones, which is sweet and neutral without poisonous nature.ˇ± They also considered that jade was the most lively and abundant stone to keep body strength, and to suck jade in the mouth is helpful for saliva synergy, exclude the stomach heat, nourishing heart and lung, moisten throat, keep hair. Thus, due to the above functions in the daily life, in ancient times, the emperors and their concubines loved to keep jades as a way to caring the health. In Song Dynasty, Emperor Song Huizong
