Good Hetian jade seed material, shape, whiteness, skin color and moisture are good enough to be called fine. People have always attached great importance to the color of Hetian jade. The color of jade contained in Wang Yi's "Jade Theory" is: "Red as a cockscomb, yellow as steamed chestnut, white as a cut-off fat, ink as pure paint, and a jade." Jade has five colors of white, blue, black, red and yellow, and is usually cyan and white. Fu Heng and other 纂 "Western Maps" said that the jade from the Yuyu River is: 绀, yellow, green, blue, white color. Li Yuan’s "Western Regions Wen Cun" said that the jade produced by Yarkant is different in color, white, yellow, red, black and blue. The above said that jade has five colors, but the Ming Dynasty scientist Song Yingxing believes that jade is only white and green. He said in "Tiangong Kaiwu": "Where jade is only white and green, green Chinese famous jade The red jade topaz said that it is all stone scorpion, the price is not jade, but it is not jade." The ancients said that the jade color is not the same. After our investigation and jade jade, only white, blue, ink, yellow four color. In addition, in some areas of the Kunlun Mountains and the Altun Mountains, jasper is also produced, which is also a nephrite. The genesis is related to ultrabasic rocks, similar to the Canadian Jasper and the Xinjiang Manas Jasper, but it can also be attributed to the Saitama range. Different colors of jade, the quality is not the same, such as "Xinjiang Gegu Theory, Treasures" said: "Jade out of the Western Region in the country, there are five colors ... where the utensils are white, yellow jasper is also expensive." China White has been a symbol of purity since ancient times. "Han Shu Heng Heng": "Shows white people." So people love white. White jade is not only white in color, but also in good texture. Deep people love it and are listed as treasures. According to the color appearing in Hetian jade, it can be divided into five color systems: 1. White series: There are also many varieties of white jade in Hetian jade: white fat white; snow white, pear white, ivory white, white belly, brown rice white, chicken bone white and so on. Among them, it is best to use fine and clean sheep's fat white. In the history, it is called the essence of white jade, jade, jade king. 2. Green series: In the white jade and sapphire, it is often light green white, light green, grayish green, and green to dark green in jasper. From the white jade, sapphire, jasper in order, as the color deepens, the content of iron oxide is increased, and jasper generally contains elements unique to ultrabasic rocks such as chromium, nickel, and diamond. In addition to tremolite, the gems in the jasper begin to appear as erectite or tremolite containing more iron. Therefore, different shades and shades of green are presented. Black spots and jade are obvious. Contains a small amount of impurity minerals. 3. Yellow series: Among the topaz, there are yellow, beige, beeswax, maroon yellow, okra yellow, sunflower yellow, egg yolk, half-colored yellow, and boxwood yellow, among which chestnut yellow and beeswax are topped. Other yellows are second. The yellow color is yellow and delicate, the thicker and brighter the more precious, its precious value is not under the sheep fat jade, and it is rarer than the sheep fat jade. Mostly the color caused by iron oxide. 4. Black series: The jade (black jade) in Hetian jade is grayish black and black. Black is sometimes unevenly dyed, black spots, clouds, pure black. High quality black as pure paint. It is precious because it is rare. Ink jade is also known as black jade, or jade in black jade, and jade in white jade and white jade. The reason for coloration is mainly due to the presence of microscale flake graphite impurities between the tremolite particles. The degree of black is strong and weak, and the depth distribution is different. 5. Maroon series and other colors: Hetian jade is called brown jade because of its color like brown sugar. Mostly purple, maroon, blood red (rare). Limonite is distributed between the tremolites in the sugar jade, indicating that the sugar jade is red or brownish yellow due to the oxidation of the tremolite by iron oxide. Containing manganese oxide can be purple-red. Traveling Supplies,disposable bed sheet set,nonwoven traveling supplies,compressed socks and towel Sunshine Hygiene and Health Care Technology Jiangyin Co., Ltd , https://www.shhcnonwoven.com