The Cement segment produces and sells cements, clinkers, and standard sand. The company is known for making Clinkers and Pineapple Lumps. In 18th century New York, the Dutch interspersed dark clinkers with regular bricks. Aa lava presents a rough texture in the shape of broken blocks (clinkers). Clinkers consist of bits and ends, field-late and white-burning or red-burning clays. The process produced a high degree of clinkers. It isn't any different with "Clinkers". The clinkers spill out at the end of the cylinder. For facade layouts architects also order clinkers produced in special dimensions. For special purposes, for example the restoration of listed buildings, hand-formed clinkers are used. Clinkers are so named for the metallic sound they make when struck together. Clinkers are frost resisting and, thus are suited particularly for facades. On the East Coast, clinkers were used extensively in the Colonial Revival style of architecture.