2. Black jade contains a lot of other minerals. The real black jade should be completely black and opaque, and the spotlight should not be jasper green.
3. There is also a black kava stone, which is full of ink, but not hard enough to be called jet.
Extended data:
If you want to distinguish jet, you must first understand some jade that is easily confused with jet, such as Chuanshi, Xinjiang black jasper, black sapphire and so on. Jet * * * has three bottoms. If it is white jade, it is jet, and jasper is jet.
If it is jet, it should be white.
If it is a black sapphire, it will show yellow-green light.
If it is black jasper, it will be green; In fact, the color of jasper is very dim, even if it is polished, it is green.
If it is black, it should be green and white, or opaque. But not all the opaque stones are Kawasaki stones, but also some stones with unknown names.
Because jet contains graphite, you can see some black spots on white jade under the light. Although the darker the ink, the better the quality of jet, but the edge of jade should be just transparent, otherwise you can't see white jade, which is no different from Blackstone and is easy to be misinterpreted. In short, if you really want to distinguish jet, you still have to watch more, play more and learn more.
Baidu Encyclopedia: Mo Yu