This is an amazing piece of Turritella Agate, set in a pendant. All sterling silver, both the pendant and necklace. Turritella Agate is actually a fossil with small spiral shaped snail shells. It has brown, cream and tan colours throughout it. This piece also has a tiny bit of crystallization that has also formed. Amazing one of a kind piece. The pendant sits just below collar bone length, each side is approximately 10 inches long.