This is a wonderful and large dendritic opal, 5.1 oz, 3.2” by 2.3” by 1.2” shown as it was found in Mother Nature in Kosovo and unlike the dendritic opals that are bluish or greenish, this one has a very colorful glow with accents of pale blue, caramel, russet and charcoal although the opalescence somewhat blurs the dendrites!

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Colorful Merlinite Dendritic Opal Rough