Fossilized Coral cabochon 30mm round

Amazing quality fossilized coral 30mm round cabochon.  Fossilized coral is also known as agatized coral or agatized fossil coral. Fossilized or Agatized Coral Stone meaning:  Fossil coral is a actually a gemstone.  It is a gemstone formed by the colorless compound of silica replacing the space left by ancient corals remains.  Silica is found in quartz and sandstone.  The more correct term for fossilized coral is agatized coral or agatized fossil coral.  The silica is in the water and as it moves in and out of the coral remains, it attaches to the definition of the remains in layers.  As it does so, the silica molecules join with other minerals that are present to crystalize into a type of chalcedony or microcrystalline quartz.  This happens slowly as in 20 million years.  Coral is an animal not a plant.  Their skeletons are what create coral.  Over time, they become fossils.  Their skeletons show up as a kind of flower pattern.   Agatized coral is not the same as the kind of coral in