Associated with the Root chakra. Black Obsidian Stone is a powerful cleanser of psychic smog created within your aura, and is a strong psychic protection stone. This stone has powerful metaphysical properties that will help to shield you against negativity. The energy of these stones may stimulate Associated with the Root chakra. Black Obsidian Stone is a powerful cleanser of psychic smog created within your aura, and is a strong psychic protection stone. This stone has powerful metaphysical properties that will help to shield you against negativity. This stoneBB does wonders the womb. If you’re new to Yoni eggs I would do my research and possibly start with a more gentler stone like Rose or Amethyst but if you’re ready to do the shadow work this is definitely the stone for you.