Paravauxite, Vauxite
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí, Bolivia
Triclinic crystals, semi-transparent, of paravauxite. The light blue color is not really of these crystals, but it is for reflection of the crystals, triclinic, tabular, thin, blue in color, of vauxite on which the crystals of paravauxite have grown. The largest crystal measures 2 mm. Collection and photo of Gianfranco Ciccolini. Nikon D750, ...