Xiyanyu is named after it was produced in Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province. It is one of the four famous jade in Chinese history. In the broad sense, there are two types, one is old jade (also known as Huangbai old jade), the seed in old jade is called He Moyu, which belongs to tremolite jade, its texture is simple, dignified, pale yellow and white. A precious jade. The other type is the serpentine ore of Xiuyan jasper (also known as wagou jade). Its texture is solid and warm, delicate and round, and it is mostly green to lake green. Among them, dark green and transparent sputum are treasures. . First, the quality evaluation of Daiyu Saitama has a wide variety of colors (green, white, yellow, blue, red, etc.), varying in shades Concentration refers to the shade of color. Generally speaking, it is best to use medium concentration, too deep or too shallow. Purity refers to the degree of purity of the hue. When mixed with other hue, it is not pure, or it is called color cast. Obviously, the purer the hue, the better, and the color mixing is worse. Brightness refers to the brightness of the color, also known as the color of the sun, of course, the higher the degree of vividness, the better. Uniformity refers to the degree of uniformity of color distribution. Generally speaking, the more uniform the color, the better, the unevenness is worse, but for some jade varieties, such as flower jade, various red, brown, orange, yellow tone and change The multi-faceted patterns often form strange and beautiful pictures, but they are more precious. Second, transparency Transparency is more important for jade, because most of the single crystal gemstones are transparent, the difference is not big, but Wang Shi is not, the transparency is very different, most of them are opaque, slightly transparent or translucent, a few are transparent Or sub-transparent, so transparency is more precious. Third, the texture The smaller the texture density of jade, the better, the finer the better, the more uniform the better. Fourth, the clarity Clarity refers to the cleanliness inside the gemstone, that is, the amount of impurities and strontium. Due to its good transparency, Saitama can see the internal impurities and flaws by naked eyes, and it is easy to judge the purity of the net. Fifth, the level of processing technology As the saying goes, jade does not mean nothing. There are two requirements for the processing technology: First of all, the shape should be concise and vivid, the proportion is appropriate, giving people a sense of realism; secondly, the engraving should be finely carved, with clear outlines and smooth lines. Current market Pushing the current (2012) jade professional market distribution map, we can easily find that China's Saitama market is mainly located in Xiuyan, backed by raw material production areas, and has certain advantages in raw material costs, but there are various shortcomings in Xiuyan market. It is also basically impossible to create a complete jade industrial chain for Saitama, not to mention leading the revival of Saitama, bringing jade to the world and affecting the world. The market suffers from "growth troubles" The market management regulations of Xiuyan are insufficient. The market competition is mainly based on low price competition. It is still in a very low-end market operation state. False discounts often occur, which seriously affects the normal operation of the jade professional market and is also due to lack of maturity. The market management mechanism, the Saitama market has always been in a very chaotic environment, the value of Saitama has not been able to get the upgrade in line with its historical status, the Yuyu rejuvenation, the urgent need for "mature management"; before 2000, the Pingzhou jade market and Like the jade market, merchants have vicious competition and chaotic management, and market operators’ confidence is obviously insufficient. However, after 2000, everything has begun to change. Pingzhou Jewelry and Jade Association has formulated the “Pingzhou Jade Market Trading Rules†to control Pingzhou jade merchants. In the situation of vicious competition, Pingzhou market has perfected market management and has become one of the holy places to create jade myth. Future market trend In the past few years, with the fiery jade market, other jade species have also increased their prices, and even the jadeite that has always been considered the most “slowly hot†has entered the market. It also shows a moment of madness. It is understood that in the past few years, the raw materials of the river jade jade from Saitama have risen from the original 400 yuan/kg to about 20,000 yuan/kg, even the ordinary materials that were originally used for seating. Was used to make ornaments, the price rose from the original one thousand kilograms to nearly one hundred yuan or even one hundred yuan a kilogram. Up to now, the ordinary slightly better has reached 2000 kilograms, very good even tens of thousands. Market participants believe that there is still room for growth in Xiuyan Yuyu, which has at least 10 times the increase. Market experts believe that this is the "hurricane replenishment" of Xiuyan Yuyu, which is one of the four famous jade. The reputation is much higher than that of Huanglongyu and Kunlun jade, but it is fried by Huanglongyu and Kunlunyu. The wind is so strong that the Xiuyan jade is inferior to the jade, and the market price of Xiuyan jade is therefore “not going back.†With the decision to seal the mine in Xiuyan County, the place where the Xiuyan jade jade was produced, it began to “goldenâ€. Mens Short Sleeve Dress Shirts Army Cotton Printed Shirts,100%Cotton Dress Shirts,Man Dress Collar Shirt,No Pocket Mens Shirt SHAOXING HAISA TEXTILE AND GARMENT CO.,LTD , https://www.zhenniuclothes.com