Rare....one of a kind Petrified Palm Root Wood cabochon. This unique Petrified Palm Root Wood cabochon measures 43 x 18mm. Petrified Palm Wood, also known as Palmoxylon, is a form of fossil wood from Indonesia. Ancient wood buried under sediment for years rots and fills with Chalcedony quartz deposits to form a fossilized wood. Petrified wood is said to be the stone of patience and slow and steady personal growth.