One of the more rare and recently identified Tsumeb species that also forms good specimens, this is an interesting hair-like mineral. This is a rare antimony, arsenic, molybdate, and they come from a single small pocket in the third oxidation zone at Tsumeb. The specimen consists of a wispy, white fibrous material (actually it is crystallized, but looks like hair) and white, tabular-appearing, "crystals" or composites of biehlite replacing something else, to 1 cm in length. A fine large thumbnail, that seems to have been sold twice by the previous dealer over the years (and note, this material really should command a premium. It truly is rare! But, we lowered many of these below prices that were even paid, in the course of amortizing the collection to price it).