Size and shape will differ to the photo.
Crystals sold singularly.
Black Obsidian is a protection stone.
It is a powerful cleanser and purifier of psychic smog that's created within ones aura. This makes the stone a strong psychic protection crystal.
The stone also helps heal physical disorders, such as eating disorders, addiction and any negative behaviours.
Beneficial to joint pain, hardening of the arteries, circulation problems, cramps and arthritis.