How to distinguish amber from real amber?

The first way to identify amber is to put it in completely saturated salt water (1: 5), and the real amber will float, otherwise it will sink. Another way is that amber and beeswax will produce a loose fragrance when burning, instead of the burnt smell of plastic. This is one of the identification methods. If it is inconvenient to burn, you can use a fine needle to break the beeswax or amber after heating, and then pull it out while it is hot. If it produces the smell of black smoke and rosin, it is real amber. If it emits white smoke and produces a smell of plastic, it can identify counterfeit products made of plastic. In addition, when pulling the needle, it is fake amber that will "pull the wire", but the real one will not.