Cylindrite (rare cylindrical crystallization!)

Item Description

This is a VERY large old-time specimen of one of the most unique species in all the mineral kingdom. Cylindrite is a lead, iron, tin, antimony sulfosalt that forms in "cylinder" or "tube" shaped crystals, hence the name. Brilliant metallic tube-shaped or open tube-shaped crystals to about 2.3 cm are richly visible on a portion of this high quality and large example. The mine at Poopo is the type locality for the species. The back is sawed to enhance the display quality. Come with a faded old label. From a museum collection.