Trilobite in Shale (Elrathia sp.) - Utah Its lovely blue color is

Its lovely blue color is often associated with deserts and winter skies

One of the world's most famous pieces of spinel jewelry includes the Black Prince's Ruby

Commonly found in areas with high volcanic activity such as Canada

Many people are familiar with the beauty of its purple hues

It brings clarity to the mind while enhancing self-control

Trilobite in Shale (Elrathia sp.) - Utah Its lovely blue color isTrilobites 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