We used to call this "Turritella" until a customer told us we were wrong. (Thank you) "Sea Lilies" are actually animals called crinoids. Crinoids were very abundant during the Paleozoic era. And now we can make beads out of their fossilized remains. It's a pretty rock once you look closely. Temporarily strung (no clasp). 20 beads per strand. Combine with other selected strands for the price break.