Coral: is among the most ancient of gemstone materials. It is not actually a stone, but rather the calcified structures of once living tiny marine animals called "polyps", whose habitat resembles tree branches. Coral ranges in color from white to red, with a Moh’s Scale hardness of 3.86. Coral is found in sea beds ranging from 20 to 1,000 feet in depth, and is becoming increasing more valuable and harder to find as our reefs begin to shrink due to pollution and overuse. Coral is said to be good for helping to settling the restlessness within. Such as tempers, rages, and compulsive disorders. Helps to balance and center. Also said to protect against depression and despondency. Believed by some to provide protection and guard against violence, accidents and thefts. Said to calm emotions and restore harmony, as well as being beneficial in the relief of fevers, colds, Asthma and digestive problems