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.
Extended data:
Determine the pros and cons:
In the jade market, there are often some precious stones mixed with some exquisite artificial jade. Therefore, I am afraid that we are most concerned about the identification method of jade, which plays an important role in ensuring that we will not be cheated by jade merchants in the future. The more reliable identification methods are: seeing, listening and testing.
Look, mainly depends on the crystal transparency, real jade has strong transparency and oily luster; 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, electro-colored fake jade, synthetic jade made of jade powder and crystal with salt water, and jade imitated with nitrate, etc. Their identification methods are also 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.
Distinguish the quality of jade according to its color, quality and quality. Whether it is white jade, topaz, sapphire or jasper, its jade color must be bright, and the best is not evil, gray or mottled. As far as jade and jade are concerned, it is required to be delicate and white, pure and free from impurities.
No matter what color of Baoyu is, the finer the quality, the better, and the finer the moisture. Jade jewelry is suitable for people of all personalities and ages. Whether it is a beautiful young girl or a graceful young woman, wearing a sparkling diamond necklace with pure and shiny Baoyu earrings or bracelets will look radiant.
Identification of jade is mainly to prevent nitrate from acting as white jade. It can be identified from the aspects of color, jade, fracture, impurity, specific gravity and sound.
colour
The white of white jade is often slightly blue, and there are few people who are extremely white and pure white, while nitrate is evenly white and pure white. After the light is on, nitrate still has a slight orange light.
Jade property
One of the properties of jade is moist and greasy, like cream, while nitrate has a bright and moist feeling, but it has a naked feeling, but it has the feeling that thief light flashes in the bright and moist.
break
This is an obvious difference. The fracture of white jade is stony, dull, serrated or serrated, while the fracture of nitrate is material, bright and shiny, and shell-shaped. Although jewelry appraisal can't be destructive, it can be observed through some accidental bumps, unpolished grinding surfaces and corners.
impurity
There will be no bubbles in jadeite, but there will be bubbles in nitrate. Sometimes it is difficult to be observed because of its translucent color, and sometimes it is rare because of its good quality. But as an appraisal, you can't stop without finding evidence.
Sometimes we can check from the surface. If there is trachoma, that is, there are bubbles on the surface, it can also be proved to be nitrate, because white jade does not have this characteristic, and the bubbles inside can also be checked under strong light.
proportion
The specific gravity of jadeite is between 2.9 and 3.1,and the nitrate is about 2.5, which is lighter than nitrate.
sound
The voice of jade is dignified, and the voice of nitrate is crisp. In some cases, jade and nitrate can be identified by their different sounds.
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