In Hetian jade, there was a jade that was called 95 Yutianshan material. Because of its excellent quality, it was highly sought after by the market, but due to its limited resources, it was only two years in the market. It is hard to find traces.
There are many jade-producing areas in Xinjiang, and Yutian is one of them. In history, Yutian County is the main producing area of ​​Hetian jade, and it mainly produces mountain materials. According to historical records, Yutian jade is not only fine and moist, but also pure in density, purity and chroma. If compared with the white jade of Hetian Yulong Kashi River, Yutian jade is even more delicate and pure.
Yutian County is 180 kilometers away from Hetian County. Yutianshan is a very special material. The white jade white and white produced in Yutian Mine Point is pure and clear, strong and hard, and the water head is very full. The carved works look very beautiful.
First, the production situation of Yutian material:
Yutian County is located in the southwestern part of China's Xinjiang Uygur Autonomous Region. The western Kunlun Mountains, which are the ancestor of Wanshan Mountain, are composed of three parts: the southern mountainous area, the central plain and the northern desert area. The southern mountainous area has an average altitude of over 4,000 meters. There are five main jade mines.
The first place: the upper reaches of the Karakash River in Pishan County, the northern slope of the 382 km of the Xinzang Highway, with an ore point at an elevation of 3,950 meters, producing white jade and sapphire, and many ancient mining pits.
The second place: the western mining point of Kara Dapo, Pishan County, with an altitude of 4,000 meters, producing white jade with good quality. Local transportation is very inconvenient!
The third place: the iron-white mine site in Pishan County, at 3350 meters above sea level, the main production of sapphire, Kunlun jade (岫玉). Local transportation is very inconvenient.
Fourth place: Hetian County Heishan Mine was once an important production site for ancient jade.
The fifth place: There is the Alamas jade mine in Yutian County. It is a jade land mainly produced in modern times. It has a large scale and many mines. The main source of white veins and sapphire is the best quality of white jade.
Second, the characteristics of Yutian material:
Yutian Mine has no seed material, only mountain material, which is the earliest and longest mining mine in Baiyu Mountain. Because it is a mountain mine jade, the surface is jagged skin, and the internal features are the most easily recognized among all jade materials. The reason why Yutian is so precious is inseparable from its excellent quality. The distinctive features of Yutian are the good whiteness, fine texture, dense and uniform structure, high oiliness and less stains.
Compared with Hetian jade, Yu Tianyu has a slightly lower density than Hetian, and oily is relatively inferior. Of course, the best products are excluded. If you look at the appearance, Yu Tian is slightly more transparent than the Tiantian.
In addition, the high-quality Yutian material is sometimes not worse than the Hetian jade seed material. Because the two are similar, they are not easy to distinguish. However, the most obvious difference is that the structure is different. The Hetian jade seed material has a felt-like and fiber-interwoven structure inside, and the field material has a layered structure, which can be distinguished according to this.
Carving in Tianshan is a juggling battle between jade carvings and jade. When the rubbings are cut in Tianshan, you will find that the cracks in the material are moving, will grow with your cutting speed and progress, and grow long. Soon, make your good mood and work results disappear.
The reason why Yu Tianshan has such a personality is related to its book-like structure. Compared with the good toughness of the felt or rope structure of Hetian Heishan material, the book-type laminated structure is easy to be cracked after being stressed, which is not difficult to explain the reason why the Tianshan material crack will grow. Yutianshan has found a lot of mines for the discharge. Even in the vicinity of Celle County, it is found in the same material in the field. In addition, there are large-scale extinct volcanoes around the Tianshan production area, which is in line with ancient volcanic jade. Geological features, theoretical reserves should be quite a lot.
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