This old-time specimen is interesting; chunky pseudocubes of orange wulfenite are covered with tiny, acicular crystals of endlichite (arsenatian vanadinite) that really sparkle. This material was once mistaken for and sold as mimetite on wulfenite due to the unusal form of the vanadinite crystals. Old, from the 1950s-1960s. Ex. Consie Prince Collection.