Trilobite in Shale (Elrathia sp.) - Utah It is a silica-based gemstone

It is a silica-based gemstone with calcium

Metal: Simple Brass

dying out along with the last of the dinosaurs

It features one larger crystal point coated in many

Trilobite in Shale (Elrathia sp.) - Utah It is a silica-based gemstoneTrilobites are considered one of the most successful groups of animals to ever live on planet Earth. They lived for over 300 million years and there have been more than 20,000 different species identified. These creatures are members of the phylum Arthropoda. These animals are classified as having segmented bodies with an exoskeleton to protect their organs and muscles. Living examples include insects, spiders, crabs, lobsters, scorpions, and