The mineralogical name of all things born jade is Si-Mg twin inkstone, also known as Zhu Shi, Zhu Yan and Hehe Ruyi Stone. In essence, yin and yang are in harmony. Natural color separation inkstone not only has the beauty of life aesthetics, but also has the connotation of harmonious culture. At the same time, it has seven healthy elements of silicon, iron, titanium, magnesium, potassium, sodium and calcium, so it is called Wan.