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: 3.3 x 1.8 x 1.1cm

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