"Opal Wood" is a one-of-a-kind, 1.5-inch Pendant made of very rare, Opal Replaced Petrified Wood ( and it's a spectacular specimen! You can even see the grain!!), along with faceted Peridot and Chrome Diopside 'blossoms' - all, in a beautiful botanical setting of 18k Gold and Anti-Tarnish Sterling Silver on 16 to 18-inch Anti-Tarnish Sterling chain with a 2-inch extender & Peridot finial.
Wood opal is a form of petrified wood which has developed an opalescent sheen or, more rarely, where the wood has been completely replaced by opal. Other names for this opalized sheen-like wood are opalized wood and opalized petrified wood. It is often used as a gemstone.