Conglomerate. 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. ... Conglomerates are differentiated from sedimentary breccias which are composed of angular clasts. read more
A sandstone is comprised primarily of small, rounded grains (typically <1mm in diameter) of quartz, feldspars, and other lithic fragments. A conglomerate is comprised of a mixture of larger rounded grains (>2mm diameter) that have been cemeted together and can be made up of a combination of any minerals. read more
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. read more
There are also a variety of uses for sandstone; among other things, it is a notably popular building material, commonly used for things like tile and flagstones. Conglomerate is a clastic sedimentary rock that contains large (greater than two millimeters in diameter) rounded clasts. read more