Fossilized Coral and Calcite Mushrooms / 1.5-3.5" AVG - 1 KILO LOT

Quantity: 1 kilogram

Average size range: 1.5 to 3.5 inches

Coral fossils form when as older parts of the reef die, their hard skeletons accumulate calcium carbonate that is secreted by other members of the reef. Over time, some of this material can be replaced by other forms of calcite and aragonite.