Real ivory has some exquisite patterns. If it is soaked in vinegar overnight, it will soften and can be made into fine technology. After it is made, it will be hard with equisetum water. Without these characteristics, it is not real ivory. Another method is to cook ivory with gravy, which will soften and then recover by the first method. (Source: China Jewelry Network) All kinds of fake ivory products: Most of the early fake ivory products were bone products, and then all kinds of so-called artificial ivory. There are three main types of artificial ivory: 1. Phenolic casting resin: made of phenol and aldehyde plus resin, colorless and transparent, and can be melted or carved with various colors. It is characterized by hardness, no fear of heat, no deformation at high temperature, easy to become brittle, afraid of falling and touching, and yellowing over time. 2. Nitrocellulose plastic: made of nitrocellulose and camphor, with appropriate fillers and lithopone pigments, characterized by soft texture, elasticity, heat resistance and flammability. 3. Casein plastic: synthesized from protein and formaldehyde in animal milk, characterized by easy deformation at high temperature, but elegant texture. Although fake ivory products are rampant, it is not difficult to distinguish between true and false ivory as long as you master certain methods. A simple way to identify true and false ivory: look at the color: real ivory is white and natural, and bone products are mostly bleached. Even if ivory is bleached, it will show oily white luster, while bone products will become dry after bleaching, while plastic products will be dull, unnatural and dull. Second, look at the texture: the real teeth are delicate in texture, with fine ripples and no bone eyes. In contrast, bone products are rough in texture, with thick lines and bone eyes. Bone products are rough in texture and grain, while plastic products often have no grain. Third, look at the weight: from the weight point of view, due to the large proportion of ivory, the weight of tooth carving is obviously heavier than bone carving and plastic products. Fourth, look at the workmanship: most of the real ivory works are meticulous, and the products are mostly round; However, bone products are rough because of their own materials, even if they are carefully made. In addition, because of the small material, bone products are mostly oval or oblate in shape, and the surface is uneven. Plastic products often leave traces of molds.