Opal Dendritic Large White Round Beads | 21mm | White | 3 |Large White Dendritic Opal Round Beads for Jewelry Making. This is for three DENDRITIC OPAL Round cut Beads!! These are completely natural not treated in any way! These are very unusual beads! Primarily pure white or transluscent a very few have black dendrite inclusions or a more luminescent opal look! They range in color from pure white, to semi transluscent, to clear to a creamy white and a few with black dendritic inclusions! THESE ARE GENUINE