Kunlun jade introduction

The nephrite products produced in Qinghai Province have some different characteristics from the traditional Hetian jade. The data compares the Qinghai nephrite with the traditional Hetian jade variety. 

I. Introduction of Origin 青 Qinghai soft jade is produced in the plateau hilly area of ​​more than 100 public tanks along the southwest of Golmud City in Qinghai Province and along the Qinghai-Tibet Highway. There are about three mines mined so far. Although the local altitude is high, but the relative height difference is not large, the traffic is convenient. The jade produced in this area is mainly mine mining materials, a small amount of mountain water (Gobi) materials, no sub-materials. The production area belongs to the eastern edge of the Kunlun Mountains and enters Qinghai Province. It is about 300 kilometers away from the border of Xinjiang, and it is closely related to the geologic structure background of Hetian jade produced by the end of the mountain and Ruoqiang. 

Second, the main commercial varieties and appearance characteristics 青 Qinghai soft jade in the early stage of output, there are Kunlun white jade, Kunlun jade, Golmud jade, Qinghai jade (green variety) and other non-standard names. According to the name principle and terms of the national standard "Jewelry and Jade Name", combined with the customary classification of nephrite, Qinghai nephrite is divided into white jade, white jade, sapphire and other varieties according to its color characteristics. Commercial products are basically the same as Hetian, and the color features are more abundant. For example, the emerald green, ash-gray-purple varieties in Qinghai nephrite are rare or unseen in traditional Hetian jade. The varieties and characteristics are now described as follows:

White jade: The main variety of Qinghai nephrite is also the largest variety of production. Sometimes the industry is called "Qinghai White". It is gray-wax white, translucent, and the transparency is obviously better than that of Hetian Baiyu. The texture is fine and the output is large, and a small amount reaches the quality of “Yellow White Jade”. The industry figures are vividly described according to their different appearance characteristics: milk white jade, permeable white jade, pear white, rice soup white and other varieties. The texture of Qinghai Baiyu is fine and even, and the blockiness is large. It is a good material, but its transparency is high, the dignity is not enough, and it is especially light after being thin. 

Green white jade: light gray green - blue gray, light yellow gray, etc., the color is light and refreshing, translucent, fine and even texture. The transparency is obviously larger than that of Hetian Qingbaiyu, the water head is sufficient, and the uniformity is good, which is very popular among the insiders. Often referred to as: white, green, white, duck egg blue and so on.青 Sapphire: Green ash - dark gray green, darker shades, translucent and texture are often better than Hetian Sapphire, the head is good, suitable for making large and medium ornaments and utensils. After the thinning, the color changes to the sun, solemn and elegant, and the sound is loud, and it is a high quality sapphire. 

Cigarette jade: light-medium gray-purple to smoky gray, slightly grayish in the smoky gray. Translucent, delicate and moist texture, some people call it violet, 藕荷玉, 乌青玉. It is rare in traditional Hetian jade varieties. Due to the significant color characteristics, it can be said to be a symbol of Qinghai nephrite. The variety is produced in a separate thin layer, and there are also white jade materials with black-side white jade and black leather on the edge of white jade. It is more suitable to categorize it into the sapphire class, which can be called sapphire jade, and the purple weight can be called purple sapphire. Yanqing jade enriches the pretty varieties of nephrite, and the “shrimp”, pigeons (grey rain points), black and white doubles (獾) in the variety are very creative. 

Jade green jade: light green, its green features like tender green jade, and the green color of sapphire and jasper is obviously different. This part of green nephrite is rarely produced separately, but attached to the side of white jade and white jade raw materials. The formation of interlayers and agglomerates are often associated with sand and spotted stones. The finished products are all green, and some form a pretty color on white jade and white jade carvings. This is rare in the previous Hetian jade products. All green and pretty products have become hot spots in jade collection. According to its coloring characteristics, the name Cui Qingyu is more in line with the name standard. 

Sugar jade: There are also sugar-colored jade varieties in Qinghai nephrite, which are mainly light yellow-brown and relatively uniform sugar-dyed and spotted dark brown-yellow-brown ochre. The sugar color is either concentrated to form dark brown spots, or the color is too light, contributing little to the pretty color, destroying the jade quality, and the available value is lower.

Summary and discussion:

The output of Qinghai nephrite is a major event in the jade market since the 1990s. Among them, Qinghai Baiyu has shaken the market of Hetian jade with its huge output and excellent texture. Combining the aforementioned findings: 

(1) Qinghai nephrite and Hetian jade are basically the same in terms of material composition, occurrence, structure and structure. It is only slightly different from Hetian's nephrite in some aspects of output characteristics, structure, and physical properties. 

(2) Qinghai nephrite has the distinguishing characteristics formed by the place of origin:

(1) better transparency;

(2) gray-white-yellow, yellow-gray white jade, characterized by jadeite and jadeite varieties;

(3) Characteristics of inclusions such as stone flowers, flocculent mites, "waterline", and scorpion-like spots;

(4) The raw materials are mainly mountain materials, there are no sub-materials, and there are raw material forms and skin colors related to the geographical environment of the production area. 

(3) Qinghai nephrite, especially white jade, has risen in price in the downturn of the jewelry market in recent years. It has risen by 300% to 500% in the past four years and has high investment and collection value. 

(4) The soft jade produced in Qinghai is in full accordance with the meaning of Hetian jade.

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