Goethite ps. After Gypsum (rare locale) Trimingham Coll

Item Description

A rare and excellent pseudomorph plate from the famous mines at Lavrion. A multitude of sharp gypsum blades have been casted by goethite on the thin limonite plate. In great shape, overall, the very broken pseudos reveal that the interiors are hollow (epimorphs). Rare and desirable material from the Bob Trimingham Collection.