Excellent classic wedged form crystals of lustrous sky blue crystals of the rare mineral Liroconite, richly adorn a 1.5cm x 1.2cm cavity, with several small cavities also lined with Liroconite crystals. The crystals of Liroconite measuring to 4m on edge have developed on a white botryoidal lining of 'Gibbsite' in a Quartz/Iron oxide matrix, and minor light green Malachite.