5.6" Aragonite Stalactite Slice Cave Calcite Crystal Mineral Specimen Morocco Tyrannosaurus Rex composed primarily of iron and

composed primarily of iron and nickel

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

Scientific LegacyTrilobites are considered one of the earliest complex life forms on Earth

spawning the planet's first monumental reef systems

5.6" Aragonite Stalactite Slice Cave Calcite Crystal Mineral Specimen Morocco Tyrannosaurus Rex composed primarily of iron andLocation: 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