Trilobite in Shale (Elrathia sp.) - Utah The geological conditions leading to

The geological conditions leading to the formation of these pyrite specimens have been near perfect for millions of years

Average Weight: 6-8 oz

It is a 170-carat

It is theorized these agates formed between intergrown angular crystals of quartz/gypsum

Papandayan Volcano

Trilobite in Shale (Elrathia sp.) - Utah The geological conditions leading toTrilobites 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