Sterling Silver, Black tourmaline in mica, faceted tourmaline accent, and a Feather Ridge Plume agate.  This stone is so wonderful and very rare, full of texture and subtle sparkle. The Feather Ridge agate is a doublet, sitting on top of black onyx. The piece itself is 2-1/4" long by 1-3/4" wide on a 22" adjustable chain.
(please look at the video to get a better idea of what the stone looks like)
Exchanges only please