Black Tourmaline is a stone of purification. It is associated with the root or base chakra, and is excellent for grounding excess energy. It is well known as a purifying stone that deflects and transforms negative energy, removing negativity from an individual or an environment. It is often used as an aura cleanser, and can help you attain higher levels of awareness. Carrying this stone can help clear energetic imbalances from your energy field. Black tourmaline can help rid you of negative thoughts, anxieties, anger and ideas of unworthiness. The purification through this stone is powerful.