Very good, classic Tsumeb combo of Dioptase on Calcite. Both species are well-crystallized and all average about 2 mm in size. The Calcite is fluorescent. For it's richness and size (large miniature/small cab borderline in class), this is a choice specimen of this desirable combination! It is sparkly and leaps off a shelf in a way hard to capture... dioptase is notoriously difficult to photograph well.