Black tourmaline is excellent for grounding excess energy. It is a well known as a purifying stone that deflects and transforms negative energy, and thus is very protective. It can transform and remove negativity from an individual or an environment. It is often used as an aura cleanser, and can help one attain higher levels of awareness. Black tourmaline is also used for repelling and protecting one from black magic, and is often said to return the negative spell to the sender. Emotionally, black tourmaline is excellent for dispelling fears, obsessions, and neuroses, bringing emotional stability. Physically, black tourmaline can strengthen the immune system; help with heart disease, arthritis, and gout.