Coral is one of the few gemstones of organic origin. It is composed of marine calcium carbonate deposits and comes in many colors and varieties found in warm coastal waters around the world. In crystal healing, Coral can be used to reconnect with nature and its variety of wonders. Red Coral is a stone of passion and empowerment. Physically, Coral aids the bones and teeth. Coral healing crystals help balance and open the Root Chakra.