Hetian jade is a kind of nephrite, commonly known as true jade. The jade in the narrow sense generally refers to Xinjiang Hetian jade. English name Nephrite. The chemical composition is an aqueous calcium magnesium silicate having the chemical formula Ca:Mgs(OH)z(Si4011)2. The hardness is 6 to 6.5 and the density is 2.96 - 3.17. Hetian jade and Shaanxi Lantian jade, Henan Nanyang jade, Gansu Jiuquan jade, and Liaoning Xiuyan jade are also known as China's five famous jade.
Hetian jade (and the ancient name of the jade jade) is a single mineral rock composed of microcrystal aggregates with very few impurity minerals. The main component is tremolite. Its famous place of origin is Kunlun Mountain, known as the "ancestor of Wanshan Mountain", and today's Xinjiang Uygur Autonomous Region. Hetian jade is produced about 1300 kilometers long on the northern slope of Kunlun Mountain. It is called the “Hetian jade†on the Kunlun Mountain and the river in the narrow strip with Hetian as the center. Hetian jade is a high-grade jade in jade and one of the candidate jade stones in China. Today, the name of Hetian jade does not have the origin of the national standard, that is, whether it is produced in Xinjiang, Qinghai, Liaoning, Guizhou, Russia, Canada, South Korea, the main component of the tremolite can be called Hetian jade.
Hetian jade has a long history of at least 7,000 years in China. It is the main body of Chinese jade culture. It is a precious heritage and artistic treasure in the treasure house of Chinese national culture. It has a profound cultural heritage. China is the only country in the history of the world that combines jade with humanity.
1. Hetian jade is characterized by warmness or oiliness, so it is different from Xinjiang Hetian jade. Other jade moist and oily can not be compared with Xinjiang Hetian jade.
2, Hetian jade color: white, sugar white, green white, yellow, sugar, blue, green, ink, tobacco green, green, blue and white.
We know that Hetian jade in Xinjiang was dominated by topaz and white jade before the Qing Dynasty. Among them, topaz is very beautiful. In fact, no less than sheep fat jade, we should give Huang Yuzheng.
3, Hetian materials are divided into: seed material, mountain water, Gobi material, mountain material. [5]
4. Hetian jade no longer has the meaning of origin and became the name of the commodity. No matter where the nephrite is produced, the name Hetian jade is used uniformly. For example, Qinghai produces what is called Qinghai, and what is produced in Russia is called Russian material. In Hetian, Xinjiang, it is called Hetian, and so on.
Seed material
Good Hetian jade seed material, shape, whiteness, skin color and moisture are good enough to be called fine. The seed material is formed after thousands of years of grinding and scouring in the riverbed. It is really hard to get a piece of seed with excellent shape and less sputum. The price is also high in the market. As the saying goes, jade is not a weapon. It is not very suitable for use in a very beautiful seed jade. If it exists, it can be carved into a variety of beautiful devices. The same thing can be done a lot. However, for the Yulong River to give a beautifully shaped seed, any one of them is not allowed to hit even one eye. It is recommended to use the form of gold or silver to retain the original shape of the material. Natural, without carving, is a beautiful pendant. This kind of good material is better than any masterpiece.
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