To say the history of Hetian jade, the earliest Hetian jade we discovered is the jade that was unearthed in Inner Mongolia. It is estimated that it has a history of 8,000 years, and it still looks warm and delicate, and the quality is good. Interestingly, despite the long history, the name "Hetian jade" is very young. It was named after the nine years of Qing Guangxu (AD 1883). It was only a hundred years old. In fact, the name of ancient Hetian jade should not be too much. For example, when Qin Shihuang unified China, Hetian jade was born in Kunlun Mountain, and it was called "Kunlun jade". Later, it was changed to "Yuheyu" and "Saishan jade". "Yu's jade", "Zhongshan jade", "true jade" and so on. Hetian jade has been mining nearly 10,000 tons: Imagine that Hetian jade began to be exploited and utilized 7,000 years ago. After thousands of years, how much Hetianyu has been mined! According to historical records, from the beginning of Xia, Shang and Zhou, to the end of the Qing Dynasty, Hetian jade mined during this period has a total of 9,968 tons, an average of 2.5 tons per year! Early Hetian Yugang was discovered, most of which were exposed to the outside, and it was easier to mine. Therefore, during the Xia, Shang, Zhou, Spring and Autumn Period and the Warring States Period, Hetian jade was still much more developed, but it was later, because it began to require deep excavation and was not easy to mine. Production has only decreased. But what is even more amazing is that after the founding of New China, it has extracted nearly 9459 tons of Hetian jade in the past few decades. It is close to the total mining volume of more than 4,000 years in ancient times, which is amazing! It is also enough to show how popular Hetian jade is in China. Hetian jade's resilience actually exceeds steel: Since the foreigners gave Hetian jade a black pot of "soft jade", Hetian jade has not been able to turn around. Everyone always feels that Hetian jade is very soft. In fact, the hardness of Hetian jade is a little lower than that of jade. Hetian jade sacrificed a little hardness, but made up for the problem of insufficient toughness. Because Hetian jade structure is dense, it has excellent toughness, and the compressive strength reaches 6541 kg/cm 2 , which is better than steel! And the extraordinary resilience makes it easier for Hetian jade to achieve a variety of complex engravings. Hetian jade is oily and shiny and does not contain oil. When it comes to Hetian jade's "oily feeling", Aiyu's friends are no strangers. This is an important criterion for the quality of Hetian jade. It means that Hetian jade's surface has a general luster of "fat". The top sheep fat jade is like a good sheep oil. However, Hetian jade is a stone, and where does the oily feeling come from? This is actually because of the special structure of Hetian jade, which allows the light to be reflected and reflected to form this sense. There are bad merchants who smear oil on inferior jade, to fool you, this is a "grease feeling", don't be fooled! Hetian jade resources will be exhausted: For the worry of the depletion of jade deposits, there may be many players who love jade. I often hear that there is a mineral mine here. There is a mine, and there is a dim sum. Especially like Hetian jade, which has a large demand for jade, has been exploited nearly 20,000 tons for thousands of years, so that people who love it have to ask, how much is Hetian jade mine? According to statistics, as of now, global gold can be mined for more than 700 years, silver can be mined for 18-23 years, and China Hetian jade, with reserves of 280,000 tons, is theoretically available for mining for about 160 years. But the difference between Hetian jade and gold and silver is that it cannot be recycled. Gold and silver can be recycled, then purified, recast and manufactured. Hetian jade is a one-time processing, can not be recycled, and can not be regenerated, so for any kind of gemstone, exhaustion is an inevitable fate. Sisal Carpet Roll,Sisal Hemp Carpet Roll,Sisal Rug Rolls,Sisal Rug Roll Hengshui Namei Imp.&Exp. Co.,Ltd. , https://www.nmarearugs.com