Appealing cave-like cavity of tiny royal blue Shattuckite spheres coating and earlier phase of light sky blue Shattuckite. The spheres are a little more connected and less isolated. The piece has an interesting form with multiple holes or entrances into cavity. The periphery edge shows numerous radiating fans of acicular Shattuckite crystals in cross sectional views, most with alternating dark and light blue banding. A nice example of Shattuckite with a good coverage of the darker blue color from the now closed Tantara Mine.