China own plenty of Jade resources.four famous jade are Hetian Jade,Xiu Yan Jade,Dushan Jade and Jiouquan Jade.
The most famous jade is Hetian Jade,which is addressed as the "country jade" in China.Now let's know something about Hetian Jade.

Hetian is a Chinese Town,located in the southwest of Xinjiang in Northwest China, is famous for its exquisite, pure white and flawless jade,that's the Hetian jade jewelry we are now talking.

Hetian Jade Jewelry is produced in Xinjiang province, from Shache to Tashenku'ergan and from Hetian to Yuzhen which are located in the north of the 1600-kilometer long Kulun Mountain. There are 9 originating areas for Hetian Jade. Hetian Jade is made of nephrite, a silicate of calcium and magnesium. It is a fibrous variety of the amphibole mineral series actinolite to tremolite, usually closer to actinolite. Its chmical formula is Ca2(Mg, Fe2+)5(Si4011)2(OH)2. It has a monoclinic crystal structure. It has green, black, brown, and beige colors. The Hetian jade is opaque, and has lustrous wax-like appearance after polishing. It has a hardness between 5.5 to 6.5. Its refractive index is 1.606 - 1.632, and density is 2.9 -3.1 g/cm3.

Hetian jade originates from rocks residing at an altitude between 3500 and 5000 metres of mountains. After years of evolving and erosion, they are brought down into the river by rain, water, or movement of ice. In the fall, when the water level is low in the river, some of the jade pieces may be emerging from the water. Hetian jade has a history of more than thousands years, In ancient times, Hetian jade was transported into the Central Plains in batches and then engraved into all kinds of exquisite sacrificial vessels and jade ornaments. Through the ages, Hetian jade had been considered a priceless treasure. Traditionally, the fine jade in Chinese refers to the soft jade(nephrite jade), with a rigidity of only 6.5, which is very precious. Jade can be classified into white, green, blue, yellow and black, etc. and the white one is the most precious.

Among the various Hetian jade jewelry, Mutton-fat (called Yangzhi in China) jade jewelry is considered the best of the white jade. This region was so abundant in Hetian jade jewelry that people in the past could easily find it on the ground. But now people have to climb the snow-covered mountain peak to find some, for not much is left on ground after so many years of exploration.After all jade jewelry is one rare gem.it’s hard to find out good Hetian jade jewelry even though so many people spend so much time climbing high mountain looking for Hetian jade jewelry.

China treat Hetian Jade as “country jade”,the Beijing Olympic medal are made from Hetian Jade. so it’s a fortune to own one real Hetian jade.As Hetian jade jewelry resource is short,you will find it value more than ever.