- Thumbnail, 2.2 x 1.7 x 1.1 cm
- Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
This is definitely one of the very best thumbnails of dioptase I have seen recently, especially for the price range. It is a superior competition specimen. On crystallized white calcite are aesthetically perched, emerald green, gemmy, lustrous, dioptase crystals, to 1.3 cm.