Jadeite is the "darling" in the jade market. The goods are rare and expensive. With the rising demand for jade, the price of jadeite is rising year by year, and the quality of old jade is rising, showing a geometric multiplier. More and more collectors turned their attention to the "old jade." The old jade has a charming and delicate color, and the texture is crystal clear. The Empress Dowager Cixi in the Qing Dynasty especially loved the old jade. The excellent products in the old jade are called "Royal Jade" and also left many famous rare treasures for the world, as everyone is familiar with. The treasure of the town hall of the National Palace Museum in Taiwan is "Old Jade Cabbage". Old jade jade Professional collectors, more concerned about the old jade art, the old jade does not have A, B, C points, as long as it is old jade, it must be a natural A goods, because it has only been popular for more than three hundred years, its existence Less, the price is currently relatively low, this is a collection of items with great potential to be developed. In recent years, many hot scenes in the old jade exchange meeting are also confirming this point. In the past two decades, the old folk jade collection has been rising steadily. With the depletion of the ancient ancient jade resources, it is expected that its value will advance by leaps and bounds in the next few years, especially the ancient exquisite old jade, which will use the unique features it covers. The cultural heritage exudes its fascinating brilliance. Differentiating between old and new jade is mainly from two aspects: One is the difference between the material and the chromaticity of the new and old jade; the other is the difference in the characteristics of the old and the new. It is more important to confirm the new and the old from the material. In addition to the folks spread, there are quite a few excavated jadeites, which is the experience of modern new jade. As long as the jade has been in the soil, there will be a shackle. This kind of sputum is black fiber and cannot be washed away. Some of the jadeites that have been in the soil will have tiny flaws in the edges and corners. The jade will have a certain beauty, but the jade that has entered the soil is a disadvantage. The long-term erosion of the soil will affect the refraction of the jade, and the display of the jade color is in need of such refraction. It is not as clean and beautiful as the jade that has never been in the earth. Old pits, old species, old green, these characteristics and modern development of the new kind of jade contrast, there will be different colors, but the difference between this new and old color, can only be through years of practice, the formation of regular and experienced color positioning. Effective identification must be physically compared, differentiated and interpreted. On the other hand, it is different from the different characteristics of the process technology of the new and old jade. The polishing materials used in the old and new jadeites are different from the polishing tools. The old emeralds are bright and soft, but the reflective surface of the new jadeite is very high. Although the old jade is sub-bright, the brightness of each part is very uniform, and the new jade lacks the uniformity of brightness. If we master the Ming and Qing Dynasties and compare the technological features of modern jade, we can also distinguish the holes, lines, and craft dead angles of the old and new jade, because their process technology is the same. Currently using instrument testing, the old jade is not relevant. This is because the old jade is mostly soaked in waxy or oily. Some jadeites that have been eroded by underground acid-base soil for a long time will be affected by the test data. Therefore, we confirm that the old and new jadeite must be multi-angled. In order to have sufficient evidence to identify old and new. Maintenance of old jade jewelry Even old jade jewellery that is not waxed, because they are a multi-mineral aggregate, should not be in contact with acids and alkalis for a long time. These chemicals can cause corrosion on the surface of old jade jewelry, such as various detergents, soaps, insecticides, cosmetics, perfumes, hairdressing agents, etc. If it is accidentally wiped, it should be cleaned after cleaning. Do not let it damage the jade. Don't put the old jade jewelry in the box for a long time. After a long time, the old jade jewelry will also "get water" and dry out. The old jade jewelry that is not worn for a long time can be once put in the water for maintenance once a year. After drying the water, apply a certain amount of vegetable oil for maintenance to better nourish the warmth of the old jade. Store old jade jewelry, generally packaged separately, should not be mixed with other jewelry to avoid wearing old jade jewelry. Yupe and other hanging ornaments should always check the tether to prevent loss or damage to your favorite treasure. Don't wear jade bracelets or jade when you are in the hot springs. 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