Tourmaline is found in many colors such as red, pink, brown, black, green and watermelon. Most Tourmaline crystals have a rounded, triangular cross-section and are usually found in elongated crystals or short, stubby, prismatic crystals. Tourmaline stones have a very electrical nature and can thus effectively aid the nervous system. Tourmaline can clear away energy blockages, cleanse the aura and aid in the removal of negative patterns. It is used as a protection stone and depending on the color balances particular Chakras.