Black Tourmaline is one of the most power stones for psychic protection. Alleviates negativity and disharmony. Increases vitality and emotional stability. It is a grounding stone that connects the Root Chakra to Mother Earth. Keeps one from harm from people who are not centered in light and love.Physical said to stimulate reflex points associated with lower back, used in treatment of arthritis and anxiety, and in balancing the adrenal glands.