A sparkling jewel of a specimen, this will add flash to any Tsumeb case because it is just...different! The crystals of wulfenite have completely altered to translucent quartz, and measure to almost 1 cm in size. The piece overall is quite beautiful, and almost pristine. Matrix seems to be a druse of cuprite an dother sulphides, atop an ore core. ALMOST unique...i have seen just a few others, not so good as this, from some of the many Tsumeb collections I have handled.