1, looking at the sunshine, there are some foggy things in jade, like cotton wool.

2. Jade is very hard, like a diamond, so you can draw a series of marks on the glass. Or you can draw stones with keys or hard objects that you carry with you. What you can't draw may be jade.

3, jade is cold, put a hair on the jade, light it with a lighter, and keep it on the jade's head.

4. shine a flashlight on the stone. If it is translucent or completely transparent and has a delicate structure, it is jade.

Extended data:

Classification of jade:

Jade is divided into nephrite and jadeite.

Nephrite is a traditional jade material in China, and its name comes from nephrite. Because nephrite is the best in Hotan area of Xinjiang, people often call nephrite "Hotan jade". The hardness of nephrite is generally 5.6-6.5 degrees, and it is opaque or translucent. Nephrite is divided into the following categories by color: white jade, topaz, sapphire, (blue white jade), jasper, jet, flower jade and sugar jade.

Jadeite refers to jadeite produced in Myanmar. Whether nephrite or jadeite, their texture is very hard and their colors are very bright, so they are known as "the king in the stone". Jade is inherently valuable, and it has become priceless after being processed and carved by skilled craftsmen. With the development of the times, jade has gradually formed a jade culture.