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| style="height:20px; width:200px; text-align:center;" |Sandstone is formed from rounded [[Grain (Rock)|grains]] of sand.
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===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Sedimentary rock, page 196, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']