Fossilized ammonite wrapped in copper wire, the strand has pearls and copper spacers, the topper is a small nautilus shell. A piece that shows the transition of new to old.Ammonites were shelled cephlapods that became extinct about 66 million years ago. Ammonites were born with a tiny shell and, as they grew, built chambers onto it. They would move their entire body into a new chamber and seal off their old and too-small to live in quarters.They were first thought to be coiled-up snakes that had turned to stone, giving them the nickname 'snakestones'.Pearls, metal, fossil, wire, ammonite fossil, glass beads, copper wire. The materials are all natural and will do well in an outside environment.