Roanoke Valley Mineral & Gem Society - Mississippian Fossil Coral. The West Virginia State Gem is technically not a gemstone, but rather the silicified Mississippian Fossil Coral Lithostrotionella, preserved as the siliceous
Extinct coral fossils from lithuania : r/fossils
Prehistoric Planet Store - Replica fossils including dinosaurs like T. rex, Triceratops, and more!