How to distinguish the original jade stone? Some Burmese merchants often sell green metamorphic quartzite, green nephrite, and hydrous calcium garnet (commonly known as tumbler) as jade stone. For beginners, pay special attention to the so-called "Leiding Stone". It was identified under the microscope that the composition of the mineral was jadeite, the fissure was very developed, and the jadeite formed in the later stage was filled in the fissure. Green jadeite is dotted in a star shape, but it has no transparency. Jade merchants often make black fake skin, revealing a little green part, posing as an emerald color of black sand skin, attracting people. However, the green in the black sand color is always transparent, which can be distinguished. The raw materials of water-containing calcium aluminum garnet (commonly known as tumbler) are also sold as jade color materials, and people are often fooled. The aggregate of hydrous calcium aluminum garnet is green, with a refractive index of 1.71 and a specific gravity of 3.5. It is observed as a full extinction under polarizing. There are several signs for this stone to identify: First, the original stone mineral combination, in addition to some jadeite, often has muscovite, quartz or meat red, white albite. Some people mistakenly think that red sodium feldspar is "dip foundation." Second, the green hydrous calcium garnet is often distributed in a strip-like aggregate or in a fine vein. The center of the dye-like green color is rich in greenish black. Individual jade merchants are called "Fennel". Third, the hydrous calcium garnet is dark red under the Charles filter. The main difference between green nephrite (sapphire) and jade is that the former is grease luster, the mineral particles are extremely fine, and even single mineral particles are not seen under 50 times magnifying glass. The jadeite is glassy, ​​and the granular or fibrous structure of the pyroxene can be seen under the naked eye or under a magnifying glass of 10 times. Yarn Dyed Jersey Fabric,Yarn Dyed Stripe Fabric,Polyester Yarn Dyed Fabric,Polyester And Cotton Yarn Dyed SHAOXING GOODFULL TEXTILE TECHNOLOGY CO., LTD , https://www.textilegf.com