Trilobite in Shale (Elrathia sp.) - Utah The largest piece of calcite

The largest piece of calcite ever found came from Iceland

This is because its composition is comprised of multiple minerals

a global warming event caused by volcanic activity that killed 96 percent of all sea life

Unakite was first discovered in western North Carolina

Trilobite in Shale (Elrathia sp.) - Utah The largest piece of calciteTrilobites 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