Limonite pseudomorph after Pyrite

A matrix-free pseudomorph of Limonite after cubic Pyrite crystals.  The larger crystal measures 3.2 x 2.7 x 2.0 cm with a smaller, 2.0 x 1.9 cm, part crystal formed on top and in axial alignment to the primary crystal.  The pseudomorphed crystals are sooty black with a part-metallic sheen, probably Goethite, while most of the faces are coated in a reddish light-chocolate-brown Limonite.  A rare pseudomorph of Limonite after Pyrite from Tsumeb mine in the Oshikoto Region of Namibia.