Trilobite in Shale (Elrathia sp.) - Utah was used to create a

was used to create a green pigment for a long time

Unakite was first discovered in western North Carolina

this piece is very heavy for its size

cloudy white calcite

The largest piece of calcite ever found came from Iceland

Trilobite in Shale (Elrathia sp.) - Utah was used to create aTrilobites 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