One of my favorite parts about working with stones is learning about how other cultures and communities have interacted with certain ones over time. Fossilized Sea Urchins have been called "Witch's Stones" - believed to offer an energetic bridge between the physical and spiritual realms. Many have used them as good luck charms and fertility talismans... all roads point to their being seen as powerful tools in magic and alchemy of all kinds. 
 
Ethically sourced Fossilized Sea Urchin set in sterling silver with fine silver bezel. Chunky sterling silver chain is approximately 17" long.