what is the features of sandstone
Sandstone (sometimes known as arenite) is a clastic 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, grey, pink, white, and black.Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions.ement is a secondary mineral that forms after deposition and during burial of the sandstone. These cementing materials may be either silicate minerals or non-silicate minerals, such as calcite. 1  Silica cement can consist of either quartz or opal minerals. 2  Quartz is the most common silicate mineral that acts as cement.