Fossil Corals have been found in several provinces across the western Indonesian Islands of Sumatra and Java. These materials are the buried remnants of ancients reefs thrust up onto the land mass by plate collisions. Fossil coral is a natural gemstone that is created when prehistoric coral is gradually replaced with agate. Corals are marine animals and it is their skeletons that are fossilized and preserved. The fossil coral forms through hardened deposits left by silica-rich waters. The entire process can take over 20 million years. According to metaphysical beliefs, fossil coral is a grounding stone good for bringing about change. These are 1"-1.75". They are a beautiful rare gift from the earth.
