Kottigite (rare arsenate - excellent) Mullane Coll.

Item Description

Kottigite is a rare hydrated zinc arsenate with easily the worlds finest examples coming from the famous Mina Ojuela. This fabulously rich crust is evenly divided with sprays of two striking generations of lustrous, variable gray-green acicular crystals. Exceptional and extremely rich specimens, such as this, are very difficult to obtain in any size. Older material from the Dennis Mullane Collection. Valued at $750-900.