"Opal Wood" - Garut, Indonesia

Pair of blue “Opal Wood” cabochons from Garut, Indonesia, a trade name for vividly colored common opal with dendritic inclusions. These matched cabochons show layered swirls of blue, green, and tan, intersected by dark manganese-rich dendrites that give the appearance of branching or veining. Though often mistaken for petrified wood, this material is not fossilized—rather, it forms from silica-rich fluids filling cavities in volcanic rock, creating a natural scene-like pattern. 2 pieces / 11.205 total carats  Estimate: $72 - $75