In our web store we sell fossil corals including polished and raw / natural fossil corals. Coral is a collective name for often small marine animals. They are animals of only a few millimeters that, with their tentacle wreath, look a bit like a sea anemone. These animals, also called polyps, often live in colonies. Corals originated the cambrium about 542 million years ago. But they only became really widespread in the Ordovician some 442 million years ago. Here we sell both polished corals and raw / natural corals. Raw / natural ones are sold as exactly they are found. On the other hand, polished ones are, as their names imply, polished. being polished, they show the inner structures of the corals that are often very beautiful.