Agatized coral is a type of fossilized coral that has undergone a process called silicification, where the original coral structure is replaced by silica. This transformation preserves the intricate details of the coral, resulting in a beautiful stone that often displays vibrant colors and patterns. Agatized coral is primarily found in regions where ancient coral reefs once existed, such as parts of the Florida Keys and Indonesia. The stone is popular in jewelry and decorative items due to its unique appearance. It is classified as a variety of chalcedony, a mineral in the quartz family. Collectors and enthusiasts appreciate agatized coral for both its natural beauty and geological significance, as it provides insights into ancient marine environments.