Unusual and full of interest. Dendritic Opal has been a favorite of many artisans for a long time. The variations that make this stone so appealing also add to its uniqueness.
Dendritic Opal is a form of common Opal that has dark dendritic, tubular markings within the base Opal. The dendrites or "plumes" often appear to be shaped like mosses, ferns or trees.