2. Density. The mineral compositions of Hetian jade and xiuyan jade are different, which leads to some differences in density and hardness. Generally, Hetian jade is higher in density and hardness than xiuyan jade, and heavier in identification than xiuyan jade. In addition, if you scratch the jade surface with a knife, there will be obvious scratches on the surface of xiuyan jade, but Hetian jade does not.
3. structure. When observing the internal structure of Hetian jade and Xiuyu jade, Hetian jade has cloud-like texture, uniform particle distribution and a small amount of cotton lumps. The interior of xiuyan jade is mostly cloud-like structure with different particle sizes and uneven distribution, but the transparency of xiuyan jade is better than that of Hetian jade.