①Appreciation of luster: real jade ware has a warm luster regardless of translucent or opaque. It is normal for a small number of impurities or cotton-like patterns inside; fake jade ware is dry in color, dull and dull, and there are air bubbles.
②Measure the hardness: use a knife to engrave and scrape, the real jade does not leave a trace.
③The proportion of weight: the real jade has a heavy hand feel, while the fake one is light and light.
④Listen to the sound: Hang the jade in the air with a string and hit with a hard object. The authentic sound is crisp and pleasant, with a melodious aftertaste; the fake one is relatively dull and dry.
⑤Look at the fracture: Observing with a 10x magnifying glass, the fractures of real jade ware are uneven, and a relatively fine structure can be seen; the fractures of fake jade are neat and shiny, often glass-like imitations, and the fracture structure is rough and has no waxy luster. Stone imitations.
How to distinguish the true and false jade culture is a kind of profound and special culture in China, which has permeated various historical periods in China. There are about 500 Chinese characters from the character “玉”. Many people add the character “玉” to the description of beautiful things, such as jade girl, jade hand, jade ring, jade Zhao, jade body… even if it is a sacrifice for justice, It is also described as “Jade Broken”. Jade has a wide range of meanings. Generally speaking, beautiful stones that are naturally generated and processed to become fine and smooth, bright in color, tough in texture, and stable in chemical properties can be classified as jade. The jade that people usually talk about is actually based on nephrite and jadeite. Nephrite refers to jade composed of tremolite-actinide minerals, namely white jade, clear jade, jasper, topaz, etc.; Jadeite refers to jade from Burma that has similar properties to nephrite. Diamonds, red sapphires, agates, corals, coal crystals, tortoise shells, and the like are “organic gems.” People’s requirements for soft jadeite are relatively consistent, that is, the texture is hard and dense, and the color is bright and bright. The earliest information about jade in China’s Neolithic Age can be found at the Xianrendong site in Haicheng, Liaoning, 12,000 years ago. It is a serpentine stone tool. Later, with the invention of grinding technology, people finally discovered regularly that there are still a number of materials in the stone that have been polished to show particularly fine, clean, and beautiful materials. Although people do not know that it is jade, it has been deliberately selected for the decoration of the human body. People who are new to jade do not understand jade and are most afraid of encountering fakes. At present, the identification of glass imitation jade products on the market is probably the most common and simplest kind of counterfeit. The most common ones are smooth small rings, chicken hearts, jade tiles, etc. called “emeralds”. Because this kind of glass product is made by casting, the high-temperature molten glass will overflow a little on the edge of the object when it is combined, and it will become a faintly convex line after cooling. You can find it by touching it with your hands and seeing it. If you use a magnifying glass to observe the light, there must be large and small bubbles in it.
If you don’t ask experts, those who are new to jade have to identify the authenticity of jade by themselves, which can be observed from three aspects: 1. Because the glass texture is very brittle and hard, the structure is unobstructed, and lacks the compactness and toughness of jade, and cannot withstand strong high-speed Rotary engraving, so high-relief and round engraving are generally not processed on glass. 2. Use a magnifying glass to find the bubbles, even if you can only see one, you can confirm that it is not jade. 3. Adding chromium oxide to the glass, the color is similar to ruby; adding cobalt oxide, the color is similar to sapphire; adding chromium oxide and copper oxide, the color is similar to emerald…and so on, there are many kinds of fake jade. But their hue is always thin, lacking the oily and thick feeling of natural jade. The identification of new jade and old jade is different. The identification of new jade focuses on true and false varieties, quality, and quality of the carving. The identification of old jade is relatively complicated. In addition to a few basic requirements for new jade, it is also necessary to identify the production and historical value of jade.
The textual research on the historical value of jade is based on a clear era. To be familiar with the common shapes, characteristic craftsmanship, and color quality of jade in different eras, you can often refer to books and materials related to jade, so that it will imperceptibly improve the level of jade dating. And as much as possible to touch the real object, you can correct the parallax between the pictures in the book and the real object. How to distinguish true and false jade At present, some of the stalls selling precious jade in the market often mix with some exquisitely processed artificial jade. The reliable method of identification is: look, listen, and test. Look, it mainly depends on the crystal transparency, real jade has strong transparency and grease luster; listen, the sound of real jade is crisp, on the contrary, the sound is dull; test, the real jade is scratched on the glass, leaving scratches on the glass, and the jade itself is intact. Common fake jade includes plastic, colored glass, marble (marble), electro-colored fake jade made of jade powder and crystals, and saltwater. Different methods of fake jade, such as jade imitated by the synthetic glass, have different methods of identification. different. The texture of the plastic is lighter than jade, the hardness is poor, and it is generally easy to identify. Coloring is also easy to distinguish after getting off work. As long as you check it under light or sunlight, you will see a lot of bubbles in the glass. The more difficult to distinguish is the electric-color fake jade, which means that the inferior jade is plated with a beautiful emerald green appearance after electroplating, and it is easy to mistake it for real jade. At this time, you need to observe carefully, if there are some small green and blue cracks on it, it is fake jade. Because cracks are left during electroplating, experts call it “spider claw”. It is also said that if the electro-colored fake jade is placed in hot oil, the electroplating color will fade and return to its original appearance. Synthetic jade made of jade powder, crystals, and saltwater is imitated dark old pit jade. The identification method is very simple, that is, their proportions are different. The proportion of natural jade is 3.3-3.4, while the proportion of man-made synthetic jade is only 2.8. You can distinguish between true and false by weighing the weight by hand, or weighing with a balance. The jade ware imitated with glass is more white and lustrous than jade. The ancients said: “Yu Sai Ni, must be high.” That is, white jade must be like glass to be considered advanced. It can be seen that glass and jade are difficult to distinguish. However, true and false are different after all. As far as the color is concerned, the white jade is often blueish in the white, with very few pure whites, and the glass is pure white with even whiteness. As far as jade is concerned, jade is warm and delicate, such as grease and cream, although the glass is also warm, it is inevitable that there will be light in the luster. White jade is a natural product, and it is difficult to have a uniform body constitution, including jade tendons and jade flowers. If the glass is artificially made, there is no such appearance. The white jade has a firm texture and no bubbles can be found. No matter how well the glass is processed, bubbles and air holes are often exposed. If you understand these items, you won’t regard glass products as jade. Experts reveal how to identify fake jade
