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

Calcarenite is a type of limestone that is composed predominantly, more than 50 percent, of detrital (transported) sand-size (0.0625 to 2 mm in diameter), carbonate grains. The grains consist of sand-size grains of either corals, shells, ooids, intraclasts, pellets, fragments of older limestones and dolomites, other carbonate grains, or some combi...
Found on
http://en.wikipedia.org/wiki/Calcarenite

A limestone or dolomite rock with a sandy texture, including silica sand fragments and sand-sized coral or shell fragments and possibly other sand sized particles derived from the weathering of older limestones; commonly deposited on or near coastlines by wind and referred to as aeolian calcarenites. (Calcarenites are found in northeast Tasmania an...
Found on
http://www.cancaver.ca/docs/glossary.htm

Limestone composed predominantly of clastic sand-size grains of calcite, or rarely aragonic, usually as fragments of shells or fossils. Some calcarenites contain oolites and may be termed oolitic limestone. Calareous quart-based stone in which the calcium carbonate is present chiefly as binding material are not included in this category.
Found on
http://www.selectstone.com/architectural-resources/stone-glossary/

Limestone composed predominantly of clastic sand-size grains of calcite, or rarely aragonite, usually as fragments of shells or other skeletal structures. Some calcarenites contain oolites (small, spherical grains of calcium carbonate that resemble roe) and may be termed oolite limestone. Calcareous sandstones, in which the calcium carbonate is pre...
Found on
https://www.encyclo.co.uk/local/22191

A sandstone in which the sand-sized grains are calcite.
Found on
https://www.encyclo.co.uk/local/22327
No exact match found.