Sedimentary rock

Travertine and tufa

Calcium carbonate deposited in fresh water, at springs, waterfalls and hot springs. Highly porous, spongy deposits are called tufa; travertine is less porous and forms at hot springs.

**Tufa towers, Mono Lake, California.** Brocken Inaglory (2006), CC BY-SA 3.0. Source

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Other sedimentary rocks

Conglomerate and breccia · Quartz arenite · Arkose · Lithic arenite · Wacke (greywacke) · Mudrocks: shale, mudstone, siltstone, claystone · Limestone · Chalk · Coquina · Oolite · Dolostone · Chert · Diatomite · Radiolarite · Evaporites: rock salt and gypsum · Banded iron formation · Coal: peat to anthracite · Oil shale

Sources

Wikipedia: Limestone · Panchuk, Physical Geology 9.2: Chemical and Biochemical Sedimentary Rocks