Black Obsidian Stone is a powerful cleanser of psychic smog and is a strong psychic protection stone.
This stone has powerful metaphysical properties that will help to shield you against negativity. It has a good action to cut ties, to break negative attachments to people with whom you have been close. Pieces of these stones that had a shiny surface were used in the past as a tool for scrying.
This black stone is excellent to assist you to release disharmony that has built up in your day to day life and during work on yourself.