Dioptase, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia, miniature, 4.1 x 2.6 x 2.1 cm, Fine dioptase specimens like this are one of the holy grail desires for collectors., For sale from The Arkenstone, www.iRocks.com. For more details on this piece and others, visit https://www.irocks.com/minerals/specimen/6483
