Cuprian Smithsonite in crystallized form occurs at its very best from Tsumeb. Rather, it once was found here, generally pre-1980s, and now they are very rare on the market. Although a variety of styles existed with variance in color and crystal habit, size and matrix, I personally have always found this style of sharp rhombohedral crystal very appealing. The beautiful green-blue coloration on these is more like some adamites than smithsonite generally is seen in. This well-balanced specimen has sharp crystals to 1.4 cm, arranged nicely throughout, on contrasting matrix. From an old collection that turned up in Munich, and was trimmed down to a good size from a "big clunker." Joe Budd Photos.