Velvety, tetrahedral shaped Duftite pseudomorphs after Tennantite crystals, the largest to 23mm. The shapes of the crystals are still quite sharp and well defined, and the Duftite is a rich deep olive green colour with a velvety, almost matt, texture. All the terminations are intact. The only other accessory mineral is prismatic Quartz. An unusual, yet well presented, pseudomorph specimen.