Sand Stone

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Sandstone is basically a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments.

Most of the sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant kind of minerals to weathering processes at the Earth’s surface.

Like uncemented sand, sandstone may be of any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form very highly visible cliffs and other topographic features, certainly range of colors of sandstone have been strongly identified with certain regions.