In the process of crystal formation, it is often influenced by the environment and always contains some impurities. When we look at the sun, we can see light, uniform and fine stripes or catkins.
Amethyst cave used to be called Leigong egg, which was round or oval and hollow. Its inner wall is covered with many amethysts, which grow towards the center of the sphere. After the sphere is cut, it becomes an amethyst cave for decoration or geomantic omen.
The following methods can be used to distinguish the authenticity of jade:
1, real jade, warm and shiny, translucent and opaque, with cotton wool or other impurities in the jade, which is a normal phenomenon. Fake jade has no aura, its color is dry and dull, and some have bubbles in it.
2, water identification method: drop a drop of water on jade, such as dewdrop for a long time, for real jade; The water droplets disappear quickly, which is a fake.
3. Hang the jade to be identified in the air with a thread and pat it gently. Zhen Yu's voice is crisp and pleasant, soothing and far-reaching. False but not beautiful (this method is suitable for slightly thinner jade pendants).
4, touch method: real jade in your hand, it feels heavy, fake jade is lighter. In addition, if the real jade is touched by hand, it will feel cold and lubricated.
5, inspection method: jade towards light, such as sunlight, lighting, if the color is transparent, it is naturally true jade.
6, tongue licking method: the tip of the tongue licking real jade has a astringent feeling; Fake jade has no astringency.
7. Magnifier viewing: put the purchased jade under a magnifying glass to watch, mainly to see if there are cracks. The jade without cracks is the best quality, followed by cracks. Even if it is real jade, the value of cracks is greatly reduced. The more cracks, the more obvious and the lower the value.
8. Knife drawing: Real jade is hard, and no trace can be drawn with a pencil sharpener. The fake jade is soft and the knife cuts the mark. Choose the bottom or inconspicuous part of the jade when cutting. In addition, some jadeites have a hardness of 2. 2-3, so scratches may also appear, and attention should be paid to identification in actual operation.
9. Real jade articles have uneven fractures and dense material structure. The false fracture is neat and shiny, and it is a glass thing; The fracture material has a rough structure and no waxy luster. Observe carefully with a magnifying glass more than seven times, identify its edges and corners, holes, depressions and scribe lines, and you can find the clues of counterfeit goods in subtle places.
Secondly, the types of jade and ancient jade can be distinguished by the following methods:
1. Old jade and new jade can be identified from two aspects: old jade has an oxidized jade skin on its surface, commonly known as "patina", which looks like pear skin, which is obviously different from the natural color of jade, while new jade does not; Furthermore, from the perspective of the subject matter of sculpture, ancient jade is a symbol of rank and power, and there are many mythical flower and bird figures, such as dragons and phoenixes. New ones are generally auspicious.
2. Identification method combining eye observation and hand touch-there are 65,438 yuan of jade in the market, which is the same as 20 yuan's, and there are also thousands of jade worth. To this end, people can moisten it with fine jade, which is transparent and greasy, and feels moist when pinched in their hands. Through a magnifying glass or microscope, it can be seen that the jade has a fiber interwoven structure and fine particles; Artificial glass has no structure and bubbles can be seen. In addition, it can also be carved with a knife in an inconspicuous place. What can be carved must be fake jade, but what cannot be carved is real jade. Because the top grade Hetian jade is getting scarce, it can reach tens of thousands to hundreds of thousands of yuan per kilogram, while the average Qinghai white jade and Russian white jade are only a few thousand yuan per kilogram, so some people mix it with Hetian jade. The minerals of these jadeites are basically the same as those of Hetian jade, but the surface color is dark and not soft, which will become more dim after a long time.