Xiuyan jade is produced in the Xiuyan Manchu Autonomous County , Anshan city of ,Liaoning province in China,is one of the four famous jade in china history .

The topaz for the watery aluminosilicate mineral, chemistry molecular formula is Al2[SiO4](F, OH)2, in the ingredient F and the (OH) ratio change does not decide.

choose The same type of beads, its color, luster, mother of pearl layer thickness of mother of pearl , shape defects (spots) and other factors should be comprehensive considerated when make the final choice .

In ancient times, just as today, jade was used for personal adornment. Rings, bracelet, pendants, beads, and other personal ornaments all caved from jade appear very early in history.Discount jade bracelets believed to offer protection against rheumatism are still worn in some parts of China.