What a classic example of Tsumeb mineralogy! Sharp blue azurite crystals, partially pseudomorphing to malachite, grown together with an abundant group of the rare lead-copper arsenate bayldonite. The contrast of the deep blue with the multiple shades of green gives it what I can only describe as an alluring appearance. When one finds Tsumeb specimens of bayldonite, it's usually with patchy coverage and much duller color. Here we have rich and attractive minty green color, and the coverage is continuous throughout the whole specimen. There are a couple of other species present; the lighter I assume to be cerussite, there are also darker crystals which I'm not sure about though depending on the species could add to the overall value.



Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia



5.7 x 5 x 3.7 cm