Zebra Onyx Starfish Specimens such as this one

Specimens such as this one are one of

This helped prevent any dirt and other debris from damaging the soft tissues found inside

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

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Stone: Howlite Beads

Zebra Onyx Starfish Specimens such as this oneHow cool is this carving. Add a little flair to your collection with this cute little one. Size: ~4. 0 in. Weight: 3. 0 oz Onyx is a variety of silicate minerals similar to agate. The primary difference is the formation of the chalcedony bands. Agates show curved banding while onyx shows parallel banding. The word onyx comes from the ancient Greek word "" meaning claw. The uses of onyx for jewelry, tools, and art can be traced back almost 5000 years.