Trilobite in Shale (Elrathia sp.) - Utah Chemical Formulas: Cu₂CO₃(OH)₂

Chemical Formulas: Cu₂CO₃(OH)₂

Amethyst is often used to help soothe the nervous system

Size: ~ 1

and was first described in the early 1800s

Trilobite in Shale (Elrathia sp.) - Utah Chemical Formulas: Cu₂CO₃(OH)₂Trilobites 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