These Moonstone semi-precious Tunnels are just so beautiful! Moonstone was popular with the Romans, who thought it was formed out of moonlight. It arouses tender passion and is said to help all be more at peace. Moonstone soothes stress and anxiety and promotes emotional balance and gracefulness. PLEASE NOTE: As this is a natural product. Individual tunnels will vary in appearance as a consequence. Also, while quite strong, it may break or chip if it is dropped.