Trilobite in Shale (Elrathia sp.) - Utah This is because its composition

This is because its composition is comprised of multiple minerals

It is said the first to be made date back to 5000 years ago in Mesopotamia

was used to create a green pigment for a long time

cloudy white calcite

Trilobite in Shale (Elrathia sp.) - Utah This is because its compositionTrilobites 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