Fornacite with Mimetite (ex Allen Heyl Collection)

Item Description

A cool micro specimen of the sought after and fairly rare chromate / arsenate Fornacite from one of the most species-enduring localities, Tiger. Micro crystals monoclinic of olive-green Fornacite form small radial "bursts" and are associated with orange Mimeite and Wulfenite. A cool specimen of this hard to find material, though the crystals are small. From the collection of Allen Heyl, the namesake for the Turquoise group species, Aheylite.