First, look at the wheel pattern. The wheel pattern of the so-called natural enamel product can be seen by observing the whole large mussel, and as the bud, the texture is not visible at all, and the texture inside can be seen through the light transmission of the flashlight. Only the powder can be used to make the wheel pattern visible on the beads. The result of the constant hype of the merchants is that the society is rumored to be rumored, but everyone believes that the truth is the standard of judgment, and it is reversed. Second, look at the traces of the mine. The natural flaws, the appearance is not beautiful, the more, the key is that the use of long time is easy to crack or produce a surface that is not smooth. After the biological death, the shells are generally weathered after being naturally weathered. It is not easy to have this condition in the powdery crucible. Of course, there are also perfect ones, but the price is more expensive. If you encounter a perfect price and the price is very low, then carefully identify it. The artificial cockroach is a powder enamel, which is made by special techniques to imitate the characteristics of cockroaches. The output is not big but it is very realistic and less. It is generally sold to large brand jewellery institutions, and the price is very high quality. Third, look at the color. It is divided into white, white, transparent and brownish yellow. Of course, there are rare purple, pink, purple and even rare blood. The surface is bright and bright, and the surface is pearly. It is made of white stone or crushed shell powder or white stone powder and glued together. It is white and flawless, white and dull, and the surface is polished and shiny, which is unnatural. Fourth, look at the proportion. Natural earthworms generally have a specific gravity, a density of 2.70 g/cm3, a hardness of 2.5-3 degrees, and some varieties up to 4 degrees. In addition to observing whether the texture of the cockroach is natural, we can try to lick its weight by hand. If it feels very light, it may be unnatural. Shichigosan Costume,Female Kimono Hakama,Male Dressing Hakama,Female Kinomo Accessories Zhejiang Jiateng Trade Co.,Ltd. , https://www.kato-trade.com