A stunning specimen of alunite with an intense blue colour and perfect crystal structure. This exceptional mineral attracts attention with its transparency and geometric harmony, set on a contrasting, dark base, which highlights its natural beauty. The real asset of this specimen is its fluorescence - under the influence of UV radiation, the mineral emits a subtle glow, giving it an almost magical character. Such large crystals of this mineral are rare, which makes this specimen even more unique A labgrown specimen with a glassy luster, very well formed crystal cluster on matrix. Excellent quality and shape. Please note that the Alunite 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.