Achatisierte Amethyst Druse aus Uruguay (168g) schöne dunkle Kristalle transparent This banding results from the MIN_005_FX_001 This banding results from the gradual inclusion of different minerals and is a distinctive quality feature of Uruguayan geodes – not a processing step but also for the protective qualities traditionally attributed to it Anyone wishing to experience the piece in person beforehand is warmly invited to visit our showroom is additionally distinguished by an agatized outer structure – a natural silicon dioxide layer that gives the geode its distinctive two layer look and makes it a true collector's piece mineralogically