
1) Sedimentary rock
Found on
https://www.crosswordclues.com/clue/arenite

Arenite (Latin Arena, sand) is a sedimentary clastic rock with sand grain size between 0.0625 mm (0.00246 in) and 2 mm (0.08 in) and contain less than 15% matrix. The related adjective is arenaceous. The equivalent Greek-derived term is psammite, though this is more commonly used for metamorphosed sediments. Since it refers to grain size rather th...
Found on
http://en.wikipedia.org/wiki/Arenite

any sedimentary rock that consists of sand-sized particles (0.06–2 millimetres [0.0024–0.08 inch] in diameter), irrespective of composition. More ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/a/97

A relatively clean quartz sandstone that is well sorted and contains less than 10% argillaceous material.
Found on
http://www.encyclo.co.uk/local/22047

Arenite is a sandy sedimentary rock composed of eroded fragments of pre-existing rocks. The individual particles are of about the same size as sand grains, thus they include grits and siltstones as well as sandstones. Rocks of this type can be of marine, fresh-water, terrestrial, or glacial origin. Quartz sandstone is the most common type, and the ...
Found on
http://www.probertencyclopaedia.com/browse/HA.HTM
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