Black obsidian is known for its psychic protection, grounding, clearing of negative energy and communication to spirit. It is associated with the root chakra and the element earth.
Black Obsidian powerfully eliminates negative energies in oneself and one’s environment. It’s like a psychic vacuum cleaner, cleansing the auric field of disharmony, negative attachments, astral plane junk, and one’s own emanations of anger, greed, fear, resentment, etc. It is a strong grounding stone, stimulating the root chakra to make its connection with the earth star chakra below the feet, and deep into the core of the earth.
Robert Simmons~ The Book of Stones
Black Obsidian is also very helpful in uncovering unconscious thought patterns that are holding back one’s spiritual and personal growth. It can help to bring these thought patterns and belief systems to the surface and assist in clearing them from the cellular memory and auric field.