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Sandstone (sometimes known as arenite) is a sedimentary rock composed mainly of sand-sized minerals or rock grains. Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any color, but the most common colors are tan, brown, yellow, red, gray, pink, and white. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. (descriptive textual content drawn from Wikipedia) The example below is a purchased piece of Arizona Desert Stone, from Northeastern Arizona. The patterns in the stone are natural, and were created by wind, water and time. Return to List Back to Michael's Hobbies page Back to Michael Marcotte's HomePage