Black Tourmaline in Clear Quartz Crystal TowerBeautiful black tourmaline in clear quartz, polished into a terminated tower! Tourmaline is a shamanic stone, providing protection during ritual work. It can be used for scrying, and was traditionally used to point out a cause of trouble or an offender, and to indicate a good direction in which to move. Black Tourmaline is an excellent grounding crystal for meditation and protection.