Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like ...
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Sandstone is a sedimentary rock. It is a rock made of compacted sand. Sand is small grains of rocks and minerals (such as quartz and feldspar).
Sandstone is a sedimentary rock composed mainly of sand-size mineral or rock grains. Sandstone may also refer to: Place names edit. Australia.