Opal-An on Smoky Quartz with Cassiterite, Erongo Mountains, Karibib Constituency, Erongo Region, Namibia

The specimen has opal-an on a smoky quartz cluster with small cassiterite crystals attached. The opal-an has a bubble-like formation and is spectacularly daytime fluorescent. The opal-an is very pure and gemmy. The small cassiterite crystals on the quartz is an unusual association.

Size: 4.4 x 3 x 2.1cm

Locality: Erongo Mountains, Karibib Constituency, Erongo Region, Namibia