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jade  (especially in East Asia regions) as kind of gemstone has been became popular across  the world ,
On the mineralogy ,  jade is divided into jadeite(also known as jade, the main ingredients is NaAlSi2O6) and nephrite.
Due to the differences in chemical composition,so it showed a variety of different colors and types , but the main ingredients are Ca2 (Mg, Fe) 5Si8O22 (OH) 2).

The jade jewelry in custom is also called the Burmese jade, it is a kind of jadeite produced in Burma. jade is also produced in Japan, Soviet Russia, Mexico, American California and so on, but the quality and output are far inferior to the Union of Burma jade. In areas of the Myitkyina which in the northern of the Union Burma, the jadeite mineral deposit is the richest, There mined gem jadeite very early   and supplied for the whole world. So for long time the people knew that the jade was only produced in the Union of Burma the Union of Burma jade is a name of the jadeite and the jadeite is the scientific name, but the Burmese jade is the shoptalk of cognoscente.

At present, the upscale jade has been treasured by more and more people in the world, meanwhile, a custom of the world jewelry is that people set jade as a birthstone in May, regard it as a kind and warm stone. jade is produced on the frontier of the Union of Myanmar , China and Myanmar,  it is after intermediate stage of the Ming Dynasty, jade has been imported into China massively. However, according to the writing records and records of unearthed object, the emergence of jade is even more earlier than the Ming Dynasty.

jade is divided into jadeite and nephrite.  Usually Nephrite produced in Xinjiang province of china ,The standard for products are the following: white jade, jade, red jasper , Northeast jade and etc.It is produced in the Burmese jadeite jade. Whether it is nephrite or jadeite, all of them have very hard texture, color is very bright, so it regard as a "stone of the King" in the world.