A fascinating pseudomorph of goethite replacing selenite from a single pocket discovered in 1991 at the La Condessa Mine in Santa Eulalia, Chihuahua, Mexico. The "top" of the specimen consists of cloud-like botryoidal grey-black goethite, kinda ugly really, but the underside shows a highly lustrous cast-like hoppering of bladed intergrown selenite crystals replaced by goethite. A great addition to any pseudomorph collection. A complete floater with zero damage. Measures 3 x 2.25 x 1.25 inches (7.5 x 5.7 x 3.1 cm).