What is sandstone made up of?

Answer 1

Sandstone is made up of lightly compacted or cemented grains of sand. It should feel gritty to the finger and the grains should be visible. The grains will be mainly silica grains.

[Finer grained material would be a siltstone, of which slate is a metamorphosed variety. ]

Answer 2

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 and white.

Answer 3

Sandstone is primarily composed of fine to medium-sized grains of sand (0.06 to 2 millimeters) that are cemented together by minerals such as quartz, feldspar, and calcite. It often contains varying amounts of clay, silt, and organic material.

Answer 4

Sandstone is made out of calcium carbonates