Black tourmaline, also known as schorl, is used by ceremonial magicians to ward off and protect against demons and lower realm spirit entities. It is a must for high energy rituals, summonings, and conjuration. Black tourmaline is used to protect against dark magic, hexes, curses, and the malevolent crafting of others. It acts as a psychic shield to protect the personal aura or personal energy from detrimental interferences. It also guards the personal energy from being drained by others.