Goethite ps. Gypsum (rare)

Item Description

Whether you consider this a true pseudomorph or a hollow cast, either way you shake it this is an outrageously good specimen. The botryoidal goethite has superb luster and just the color and texture that you would want. The few places that there are dings actually enhance the specimen because they provide small windows into the multi-layering of the goethite. Seldom do you see these so sharply formed and well-preserved! Usually they are much thinner, more fragile casts with many holes in them. From an obscure Mexican locale and was formerly a museum display specimen.