Sandstone is a sedimentary rock composed of sand-sized grains of minerals and rock fragments. It is formed by the cementation of sand particles together with other materials such as quartz, feldspar, and clay minerals. The three crossword solutions for the term sandstone are sarsen (6 letters), GRIT (4 letters), and arkose (6 letters). Sarsen is a type of sandstone found in southern England, which is composed of silica and feldspar. GRIT is a coarse-grained sandstone composed of quartz and other minerals. Arkose is a type of sandstone that contains a high percentage of feldspar and is usually reddish in color.