Available in 27 colorways, these tasteful mosaics blend two or more icy hues from the Opal palette in a random, allover pattern to form swaths of flickering color. Most color options mix complementary shades for an animated yet soothing effect: three opalescent tints of gray, for instance, or varied tones of blue and green. As with all glass tiles, Opal blends are nonflammable, nonporous, and frostproof, suiting them to a wide range of environments.