What kind of sedimentary rock is chert?

A photo gallery of sedimentary rocks. Breccia, chert, coal, conglomerate, dolomite, flint, iron ore, limestone, oil shale, rock salt, sandstone, shale, siltstone. read more

Chert is a sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO 2). It occurs as nodules, concretionary masses, and as layered deposits. Chert breaks with a conchoidal fracture, often producing very sharp edges. read more

Chert is a form of quartz (SiO2), formed of cryptocrystalline silica and is the most common of siliceous sedimentary rocks. Chert is a dense, hard rock and it's colour ranges from white through grey to black. read more

Chert is a hard and compact sedimentary rock, consisting dominantly of very small quartz crystals. It is a common rock type which occurs mostly in carbonate rocks either in nodular form or in layers (bedded chert). Flint on the coast at Stevns Klint in Denmark. read more