A beautiful specimen of Alunite with a unique, purple color! A specimen with a glassy luster, very well formed crystals covering the whole host rock. Excellent quality and shape. A fantastic collector's specimen and also ideal as a decorative specimen. Please note that the Alunite is labgrown and should not be washed with water, use compressed air or alcohol to clean it. The specimen should not be exposed to full sunlight for a long time.