3.46" Fossil Clam With Fluorescent Calcite - Rucks’ Pit, FL

This is a 3.46" wide fossil clam (Mercenaria permagna) from the world-famous Ruck's Pit quarry near Okeechobee, Florida. The shell has almost entirely been replaced with calcite, and golden-yellow, fluorescent calcite crystals can be seen alongside the shell's broken edge and in a small pocket on the front.