Ferberite Wolframite jet-black to golden / “root

jet-black to golden / “root beer” colored crystal group with an unusual crystallization for the locality

colorless penetration twin of Augelite is sitting on sparkling micro Quartz on matrix

As a matter of fact

beautifully crystallized matrix specimens of Vauxite from Bolivia like this one

which I consider to be trivial

Ferberite Wolframite jet-black to golden / “rootThis was one of the very few multi twinned pieces from the find of these amazing specimens in June of 2010. This species was sometimes previously referred to as "Wolframite", which was supposed to be an intermediary species between Ferberite and Hubnerite, but has since been discredited. This beautiful piece features a few sharp, highly lustrous, jet black blades of Ferberite which are twinned along the a {100} face. It is not a simple twin consisting