Black Kyanite is one of the few crystals that never needs cleansing or clearing. It is a very powerful protector, and it can cut through negative emotions and toxic ties. Many believe that it can protect your energy and mental stamina from people who seem to always leave you feeling drained mentally and emotionally. Black Kyanite cleanses and aligns all of the Chakras. It can remove negative mental blockages and also ground and center you. Black Kyanite can take imbalances within you and bring positive vibrations to your life.