There are often news reports that tourists go out to buy gems and encounter fake gems, as well as gems of similar appearance, as well as ice jade and grape stones. Because of the similarity between the two, many jade lovers have eaten "dark losses". So how do you distinguish between ice jade and grapevine? First, look at the luster Generally, when we buy gems, they are attracted by the brilliance of their enamel. Then the grape stone is slightly weaker than the real ice jade. From a professional point of view, the jade is bright glass luster, especially the superior ice jade, which looks shiny on the surface. The grape stone is glassy, ​​slightly darker and slightly weaker. When we put the two together, we can clearly see the difference, which is also a more intuitive way to distinguish between the two. Second, the proportion The specific gravity is the relative density, which refers to the ratio of the mass of the gemstone to the mass of the same volume of water at 4 °C. Specific gravity is one of the important physical parameters of gemstones. It has a wide range of applications in gem identification and has important significance in identification and sorting. The proportion of jadeite is 3.4, and the proportion of grape stone is 2.80-2.95, which is much smaller than jade. So when you put two emeralds and grape stones of similar size on your hand, you will feel that jade has obvious "hands." "The feeling of picking up is heavy, and compared to it, the grape stone is lighter and lighter, and there is no "hands-on" feeling. However, this requires two samples of almost the same size. If the size is too large, the difference is too big and there is no comparability. Third, check the package body The moderate radial fiber structure of the grape can be said to be his signature identity, and the fiber interweaving structure in the jade is very different from it. If you see a radial fiber structure, it is very likely that this stone is a grape stone. As long as we are careful and careful, we can easily distinguish the two. Bread Shape Health Pillow,Health Pillow,Medical Pillow For Neck Pain,Healthy Pillow Changzhou Broad New Materials Technology Co., Ltd , http://www.czbroad.com