1 texture. Natural jadeite is transparent or translucent in texture, and its surface is bright and shiny. If you look closely, you can see the nearly round and slightly transparent "salt particles" and the fibrous substances around them.

② Hardness. Natural jadeite is jadeite, and its Mohs hardness is 7 degrees. It will be carved by a sharp knife without leaving any trace. The hardness of fake jade is low, so a sharp knife can draw it out.

3 Emerald. When natural jadeite is observed under strong light, emeralds with other mineral particles can be seen, which are called Cui Hua or emeralds. Fakes made of glass, plastic and porcelain have no such "emerald" characteristics.

④ Relative density (specific gravity). Natural jadeite has a hard and dense structure, no bubbles, high density and crisp sound when it is knocked; Fake products have loose structure or bubbles, low density and hoarse knocking sound.

⑤ color. The real product is rich and pure emerald color. Some fakes are made of white jade, serpentine, Australian jade, Han Guoyu, marble and even various stones. After decoloring, it is filled with high-hardness plastic slurry and colored, or soaked in green liquid to make "colorful jade". Observing under strong light, you can see green lines, which are messy and small; Some do not show lines, but they are not clear, with poor gloss and lighter weight than the real thing.

Put the fake into the melted wax liquid, and the injected pigment will slowly separate out. In this way, the detected sample will not be destroyed, and the authenticity can also be identified.