Please note that the schools of literary criticism and their explanations included here are by no means the only ways of distinguishing these separate areas of theory. Indeed, many critics use tools from two or more schools in their work.
Conglomerate is a clastic sedimentary rock that contains large (greater than two millimeters in diameter) rounded clasts.
Conglomerate is a sedimentary rock formed by the lithification of rounded or sub-rounded gravel (grains larger than 2 mm in diameter). Conglomerate is strongly related to sandstone. It is actually a type of sandstone although it may not be technically correct to say so.