Obsidian belongs to the middle and low grade gems, although most of them will not have too many unscrupulous traders to falsify, but for some high-end varieties, such as ice obsidian, rainbow obsidian, etc., it is inevitable that there will be unscrupulous merchant glass to pass the customs, China Jewelry Merchants Network The small series to briefly introduce the authenticity identification method of obsidian. 1. From the color: under the illumination of strong light, the general black slate is dark brown or dark brown. If it is a rainbow obsidian, the eye can be seen with obvious colored eyes, and some are only colored without forming an eye. The color is mainly red, green and gray. 2, from the gloss: In general, the obsidian has a stronger luster, while the gloss of the glass is darker than the obsidian. 3. From the surface texture: natural streaks, spots, etc. can be seen on the surface of the obsidian, and some of the stripes are elliptical. 4. From the inside of the package: Under the illumination of strong light, there are many small bubble inclusions inside the obsidian, and the inside is flowing and swirling. 5. From the refractive index: the refractive index of obsidian is generally 1.50, which is relatively stable, and the refractive index range of glass is 1.47-1.7, which is easy to identify. 6. From the fluorescence: Obsidian has no UV fluorescence, while man-made glass generally has strong fluorescence under short-wave. To sum up is "Obsidian does not distinguish between true and false, careful thousand Yuan obsidian glass change!" All the information, I believe you must help it, more jewelry jewelry encyclopedic knowledge please pay attention to China Investment Network. Ladie'Stops,Ladie'S Tank Top,Ladie'S Crop Top,Ladie'S T-Shirts Ningbo Sunyu Fashion Co.,Ltd , https://www.sunyucollection.com