Xinshanyu, also known as xiuyan jade, is called Xiuyu for short, that is, Xiuyu, which is produced in Xiuyan Manchu Autonomous County, Anshan City, a famous hometown of jade in China. The development and utilization of Xinshanyu has a long history. As early as the Paleolithic, humans began to ... Xinshanyu, also known as Xinshanyu, is divided into three types. One is "new sweet potato", the scientific name is "serpentine", and its origin is Hadabei Township, Xiuyan Manchu Autonomous County. Its main mineral is serpentine with hardness of 2.5-5.5 and specific gravity of 2.5-2.8. It is fine and even in texture, with sufficient water head, but soft in essence. As far as materials are concerned, Hetian jade is the best, followed by Nanyang jade and xiuyan jade. Xiuyan jade now has the largest number of mines, with the same color as nephrite, and there are also differences in white, cyan, yellow, light yellow, pink, light green and emerald. In addition, jade is delicate in texture, translucent to opaque, waxy to greasy, so it is often sold as nephrite (Hetian jade) in the market.