Agate Replaced (Silicified) Polished Dinosaur Coprolites from Utah, Morrison Formation, Jurassic age. These come from both Theropod and Sauropod dinosaurs. Cut and Polished chunks with natural rough outside. Excellent study pieces too. All collectors have one of these in their collections! These all have a professional polished finish and took many, many hours to polish.
Size: 9.0cm wide x 4.0cm thick