You can massage with this to clear the energy flow of the chakras. This stone has powerful metaphysical properties that will help to shield you against negativity. Satyamani Natural Energised Black Obsidian Massage Palm Stone 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 scaring. It an excellent crystal to use when, you have been doing spiritual or healing work.