5.6" Aragonite Stalactite Slice Cave Calcite Crystal Mineral Specimen Morocco Tyrannosaurus Rex Their origin is closely tied

Their origin is closely tied to the geological evolution of asteroid 4 Vesta

composed primarily of iron and nickel

including the catastrophic Permian-Triassic extinction—the largest in Earth’s history

Whether you're a fossil collector

5.6" Aragonite Stalactite Slice Cave Calcite Crystal Mineral Specimen Morocco Tyrannosaurus Rex Their origin is closely tiedLocation: Morocco Weight: 15. 6 Ounces Dimensions: 5. 6 Inches Long, 5. 1 Inches Wide, 0. 8 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