Jade has always been a popular jewelry item for consumers to purchase and invest in. When you buy jade, the store clerk will also teach you a few simple methods to identify jade. For those who lack market experience and professional reserves, do not be misled by some of the identification methods. All we can say is that today’s counterfeiting technology is becoming more and more powerful, so we must keep our eyes open, observe more and compare more before acting with caution. Let’s take a look at several jade identification methods that are becoming less and less effective. 1. When you knock on jade, is it okay if it sounds crisp? The finer the jade particles are, the crisper the sound when knocked. This is scientifically based. In addition, the structure of B-grade jade becomes loose after acid washing, and the sound becomes dull when knocked. However, with the development of counterfeiting technology, many B-grade jadeite now have fillers, which makes the B-grade jadeite make a crisp sound when knocked. In addition, the sound produced by knocking jade is not only related to the density of its structure, but this method is also not feasible for jade round beads, egg-shaped surfaces, and inlaid items. 2. Are the products that feel cool to the touch A-grade products? There is a saying circulating in the market that jade will be cooler when it comes into contact with the human body. This method is helpful in distinguishing imitations such as plastic and glass, but it is unreliable for B and C grade jade. This identification method can be passed when actually identifying jade, and it is basically useless. 3. Is the jade that can carve glass real jade? We know that the Mohs hardness of glass is 5.5-6, and the hardness of jade is 6.5-7. However, glass is a homogeneous body, and jade is a polycrystalline aggregate. The hardness has directional differences. The jade may be damaged in the process of scratching the glass. This destructive identification is very undesirable when actually purchasing jade jewelry. Everyone must keep it in mind. 4. "Drop of water recognition method" Due to the surface tension of jade, water drops will appear as round drops on the surface of A-grade jade. However, due to the acid-etched network on the surface of B-grade jade, water drops will not appear as round beads. However, the acid-etched network on the surface of many B-grade jade will disappear after secondary polishing, and water drops will also form round beads. This method no longer works. Many of these simple identification methods that have some scientific basis are based on people's subjective judgment and are related to people's accumulated experience, knowledge reserves and their own conditions. Therefore, they can only be used as a reference and cannot be used as a basis for identification. There are also methods such as burning hair, which are continuous and true. This identification method is completely There is no scientific basis for this, so don't be fooled easily. fcgc66 fcpf18 |
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