Shattuckite in and of itself is a lovely mineral, and is becoming more highly desired for its gorgeous light blue botryoidal crusts. Here, incredibly, you have quartz included by Shattuckite. This gives the gemmy sparkling Quartz a rich deep blue color best described as a sapphire blue. Add a few Malachite crystals, one of which is even coated by the Quartz, and you have an interesting combination specimen.