12.The Sanjiang area is rich in resources of gem jade stones, such as anumarine, tourmaline, topaz, rock cristal, almandine, rose quartz, white marble, etc.
13.As the “bueaty stone” screened among all kinds of candidates, jade was known for its mellowy, translucent and flinty texture as well as practicality.
14.It is discovered by systematic studies that there exist, more or less, some special tangible shapes on the surface of jadeite jade article with granular crystalloblast.
15.There are four main jade types in Qinling region. This paper summarizes characteristics and discusses future devolopment, prospcting directions of turqois, tigereye and Dushan Yu in the region.