Here are some pictures from a mineral museum of calcite specimen found in the state of Florida of the United States. Fossils are probably the Giant Venus Clam fossil (aka Mercenaria permagna) of the Fort Drum Member, Nashua Formation of Ruck's Pit in Okeechobee County, Florida, USA. This animal lived in the Calabrian Stage (780,000 years ago to 1.8 million years ago) of the Pleistocene Epoch of the Quaternary Period.
Specimen was on display at the la Specola Museo Di Zoologia Ceropastica e Mineralogia (Florence, Italy) (August 2024).
