This series of images (click to enlarge) shows an aluminum sample with elevated grooves after 0, 1, 2, and 3 hours in a supersaturated environment. You can see that the ice is contained to the elevated grooves and grows upward over time. However, the ice stripes disrupted the usual behavior. There, the ice stripes grew upward, away from the surface. For example, we’d need a method for patterning ice stripes on a large object.