Look, it mainly depends on the transparency of crystal. Real jade is transparent and oily.
Listen, Zhen Yu's voice is crisp, but her voice is dull;
In the test, the real jade scratched the glass, but the jade itself was intact.
Common fake jade includes plastic, stained glass, marble, electrochromic fake jade made of jade powder and crystal with salt water, imitation jade containing nitrate, etc. And their identification methods are different.
Plastic is lighter than jade, and its hardness is poor, so it is generally easy to identify.
It's easy to distinguish between painting and getting off work. As long as you take it under the light or check it in the sun, you will see many bubbles in the glass.
It is difficult to distinguish fake jade by electric color. Its purpose is to electroplate inferior jade and then coat it with a beautiful emerald appearance, so it is easy to mistake it for real jade. At this time, you need to observe carefully. If there are some small cracks with blue in the green, it is fake jade. Because electroplating will leave cracks, experts call it "spider claws". It is also said that if the electro-colored fake jade is put in hot oil, the electroplating color will fade and return to its original color.
Synthetic jade made of jade powder, crystal and salt water is an imitation dark old pit jade. The identification method is simple, that is, their specific gravity is different. The specific gravity of natural jade is 3.3-3.4, while that of synthetic jade is only 2.8. Weigh by hand, or use a balance to distinguish between true and false.
Jade imitated with nitrate looks whiter and smoother than jade. The ancients said, "Jade is better than salt, so it must be high." That is, white jade should be as advanced as nitrate. It can be seen that nitrate and jade are difficult to distinguish. However, the facts are different after all. As far as color is concerned, white jade is often blue, and white is rare, while nitrate is pure white. As far as jade is concerned, jade is moist and delicate, as fat as cream. Nitrate is wet, but there are thieves in it. White jade is a natural product, and it is difficult to have a unified structure, including jade ribs and jade flowers. If nitrates are manufactured artificially, there is no such appearance. White jade has a solid texture and no bubbles can be found. No matter how well nitrate is treated, bubbles and pores are often exposed. If you know these items, you won't regard nitrate products as jade articles.
How to buy jade articles
There are many kinds of jades in China with a long history. According to the origin, the famous ones are Nanguo Jade produced in Xinyi, Guangdong, Henan Jade produced in Henan, Shandong Jade produced in Shandong, and Sheep Fat Jade produced in Yili and Hotan, Xinjiang. Most of the more expensive jade jewelry is made of these jades.
Distinguishing the quality of jade mainly depends on whether its color has five characteristics: thick (rich), bright (bright), beautiful (beautiful in color), positive (pure) and soft. If it basically matches, it is the top grade, that is, the beautiful jade. If jade looks pale (dull), muddy (dull), old (dark in color), flowery (impure) and oblique (incongruous), it is inferior.
When buying jade articles, don't choose them under strong light. Because the light irradiation is easy to make jade lose its original color, it often covers up some flaws and confuses the real with the fake. In addition, we must learn to distinguish the authenticity of jade. At present, there are many kinds of fake jade on the market, including plastic, glass, marble, electric color and so on. Plastic and marble are lighter and harder than jade. There are some bubbles in stained glass, which will be found if you check them with light or sunlight. Electro-colored fake jade is difficult to identify. It is a beautiful and dazzling turquoise appearance painted on inferior jade. At first glance, it is not much different from real jade. If you look closely, you may find that it often has some "spider claws" (small cracks with blue in green).