Black tourmaline moon point pendant. . . Black Tourmaline is a powerful stone, with a long history among many cultures of providing protection and was traditionally used to point out the cause of trouble and to indicate a good direction in which to move. It is a very good stone of protection. It keeps the bad energies of others like envy, jealousy, grudges, and treachery away. It also protects us from our own negative thoughts. It helps us to relax both physically, and spiritually, and thereby alleviates all forms of stress. It also provides clarity and advanced perception.