A coral island is the result of an atoll whose lagoon has dried up or been filled in with coral sand and detritus. This state is typically the last in the life cycle of an island, the first being volcanic and the second being an atoll. Most of the world's coral islands are in the Pacific Ocean. The American territories of Jarvis Island, Baker Island and Howland Island are clear examples of coral islands. Also, some of the islands belonging toKiribati are considered coral islands.
