Wavellite with Quartz borate some of the largest overall

some of the largest overall Vauxite specimens in the world

and if anybody out there is familiar with the twinning of Augelite

Great quality and rather aesthetic for the material

I cannot recall a comparable Bournonite from Machacamarca

Ferberite as a species is not known in well-crystallized examples worldwide

Wavellite with Quartz borate some of the largest overallAlthough Wavellite is a fairly well known phosphate species, it is truly only found in a handful of localities in well crystallized display specimens. The majority of the Wavellites from world localities feature either micro crystals, or incomplete (broken) spheres on matrix. The Bolivian Wavellites, particularly those from the famous Siglo XX mine, are among the best in the world due to the fact that they occur with eye visible spheres that are often