Tourmaline is deeply loved by people because of its beautiful color. However, due to its high price, some businessmen regard it as a second charge and make huge profits by illegal means. Therefore, for friends who want to buy tourmaline, how to distinguish the authenticity of tourmaline is urgently needed. So how to distinguish the authenticity of tourmaline? At present, there are basically two ways to pretend to be tourmaline: one is to artificially add color to the last colorless tourmaline, and then shoddy it. The other is to use red glass after processing. So we can distinguish the authenticity of tourmaline from the following aspects: 1. Structural crystal of tourmaline: Because tourmaline is composed of complex silicate, in general, tourmaline is made of long column, with longitudinal stripes on the cylinder and curved triangle in the cross section of the crystal, so it is easy to identify. This is the simplest and most feasible method to identify the original stone among the methods to identify the authenticity of tourmaline. 2. Ghost characteristics of tourmaline: tourmaline has strong multi-color and birefringence ghost. This is very important in the identification method of tourmaline authenticity. 3. Pyroelectric properties of tourmaline: The biggest difference between tourmaline and other gems lies in its pyroelectric properties. Tourmaline will produce strong adsorption after friction heating. This is the simplest and most direct method to identify the authenticity of tourmaline. The identification of tourmaline ornaments can be mainly based on the following three characteristics: first, tourmaline has a strong dichroism, and red tourmaline is red and pink; Green tourmaline is green. Green. Based on this, green tourmaline can be distinguished from olivine, green glass and green garnet. Secondly, tourmaline has a large birefringence. From the stage, there is obvious ghost phenomenon at the bottom, so tourmaline can be distinguished from topaz and synthetic spinel. Thirdly, tourmaline is often ground into emerald, and some tubular wraps or cotton wool can often be seen in the parallel long direction, but its color is often found to be darker in the short direction. This is because tourmaline absorbs different light in different directions, and some synthetic imitations can be distinguished by this characteristic. Good luck and good luck!