It is generally recommended that Obsidian wear his right hand. Almost all crystals are left-handed, but obsidian (including obsidian) is right-handed, because according to the Qi method in ancient China, it is generally the principle of left entry and right exit. So the left hand is intake and the right hand is exhaust. Wearing obsidian on the right hand helps to absorb its negative energy, including unclean things or sick gas, and even bad luck. It's ok to wear it on your left hand. Wearing it on the left hand can strengthen our undersea chakra and resist foreign evils.
Obsidian is extremely evil, which can effectively resolve negative energy. Among the ancient Buddhist relics in China, there are quite a few obsidian relics or Buddha statues about town houses or exorcism. But please note that obsidian itself can mainly absorb a lot of negative energy, but it will not be removed, so it must be purified within a certain period of time.