Crinoid cabochon, 39X 14.5mm drop

This stone is 4.5mm thick and an approximate weight of 20cts. A nice shiny polish on front and sides and flat and back.

Fossil crinoid marble,
bits and segments of crinoid fossils tightly packed in marble from an ancient sea floor in China. Crinoids are distantly related to the sea-lily found in today's ocean depths.