Fossil Clam Shell (Mercenaria permagna) with Honey Calcite Crystals | Okeechobee, FL lapidary Each moon is approx

Each moon is approx

Its microcrystalline fibrous structure gives it exceptional toughness

piscivorous marine reptile adapted to a life in shallow epicontinental seas

Ornithomimids were long-legged

Fossil Clam Shell (Mercenaria permagna) with Honey Calcite Crystals | Okeechobee, FL lapidary Each moon is approxFossil Clam Shell (Mercenaria permagna) with beautiful honey calcite crystals from Ruck's Pit in Fort Drum, Okeechobee County, Florida Nashua Formation Early Pleistocene (2 myo) Specimen measures approx: 4. 5" x 3. 5", with matrix 6. 25" x 5. 5" x 2" The internal natural pocket area of the clam is replaced with stunning golden yellow calcite crystals that fluoresces and phosphorescence a bright yellow to a light green under short and long wave black