5" Aragonite Stalactite Slice Cave Calcite Crystal Mineral Specimen Morocco Kryptops Upper Cretaceous 99-65 Million Years

Upper Cretaceous 99-65 Million Years old

trilobites inhabited ancient oceans for hundreds of millions of years and are now key index fossils of the Paleozoic Era

powerful tail

has produced a coherent chronology

5" Aragonite Stalactite Slice Cave Calcite Crystal Mineral Specimen Morocco Kryptops Upper Cretaceous 99-65 Million YearsLocation: Morocco Weight: 8 Ounces Dimensions: 5 Inches Long, 3. 5 Inches Wide, 0. 5 Inches Wide The item pictured is the item you will receive Without Aragonite, many of Earths organisms would struggle to survive. It is a mineral used by most invertebrates to build their shells and other hard structures. If you've ever admired a colorful seashell, you've indirectly appreciated Aragonite's range of colors and its easy formation at Earths surface.