XX Mine, Near Llalagua, Oruro Dept., Bolivia (2008)
1.6x 1.4 cm
thumbnail vauxite specimen, with a globular cluster on a scrap of
specimen is a much darker blue than the average vauxite (and with
better, deeper color than the photographs show). Most
contemporary specimens tend to be lighter.
a top thumbnail, and a beautiful example of the species.
Collected by Alfredo Petrov.