Vauxite (finest color)

Item Description

Here we have a remarkable, well crystallized, TOP venetian blue color, ridiculously rare specimen consisting of radiating crystal aggregates of Vauxite. I have photographed the crystals under the microscope to show that they are truly terminated crystals and not just a blue mass. The piece is actually a thin layer of Vauxite which may have formed on top of some kind of clay (perhaps decomposed Allophane), which dissolved and left this "lace"-like crust of superb blue color Vauxite behind. It is very difficult to obtain any specimens of this incredibly beautiful phosphate. This piece is from the type locality for this material which was discovered along the Contacto and San Jose veins in this mine and was first described by Sam Gordon and Mark Bandy. You will not find better color Vauxite anywhere!