7.75" Cluster of Fossil Clams With Fluorescent Calcite - Rucks’ Pit, FL

This is a 7.75" wide cluster of fossil clams (Mercenaria permagna) from the world-famous Ruck's Pit quarry near Okeechobee, Florida. These clams are mostly covered in calcite, and one has calcite crystals that are highly fluorescent under both short and long-wave UV. There are two clams on one side and another large clam on the other side.