Excuse me, what is the name of this bottle?

Storm glass, also known as gas cylinder. /kloc-at the end of 0/8th century, a weatherman named "storm glass" appeared. It is said that it can sensitively sense the changes of light, heat and air pressure in the atmospheric environment. Once the weather changes, the chemicals in the bottle will undergo a series of changes, become turbid and grow crystals of different shapes. This is the source of the gas cylinder now.