Full Color Castle Rock has one of the most unique color ranges available in the world. The color is a range of purples, mauves, grays, blues, buffs, and creams only found in a small geographical location. Split to rough squares and rectangles, it ranges in heights from 4″ to 12″ and lengths from 6″ up to 42″ for full veneer and 6″ up to 24″ for thin veneer stone.