Well formed and uncommon from Katschberg, Austria crystals of Celestite, measuring to 1.6cm. A pleasing group of crystals sits atop the specimen in a parallel form, with several more Celestite crystals in association, on creamy crystals of Calcite on a Quartz matrix. Crystals of Celestite are a lustrous translucent pastel blue to white. From the Franz Lammer Collection.