Cylindrite - only cylindrical crystallized species (type locality)

Item Description

Splendent, intergrown sprays of silver-bright cylindrite crystals cover all three sides of the shapely, three-sided, conical specimen with a bit of matrix attached at the base. This is a very rich and showy 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. This specimen is especially nice considering that it is loaded with sprays of crystals. Crystals reach a long 3.4 cm on this piece. The mine at Poopo is the type locality for the species. A significant example of this very rare species