Unusual natural agate whcih exhibits integration of malachite. Even the lapidarist I showed to identify the stone was fascinated. Top stone is a natural moonstone - said to have magical positive powers. Set in a hand fabricated sterlign silver, solid backed setting. I show with a sgterling rope chain that is sold separate - can use your own chain, one of mine or a black cord. Approx. 2" x 1-1/2".