Coquina punika rock sedimentary sing dumadi salah siji Enèng sing lamur meh tanggung saka diangkut, abraded, lan mekanisme-diurutake pecahan saka meriam moluska, trilobites, brachiopods, utawa invertebrata liyane
argillites Highly kompak sedimentary utawa watu rada metamorfosis sing kalebu umumé utawa wholly partikel saka lempung utawa silt nanging lack fissility saka krikel utawa karakteristik panguraian saka slate
saka Concha (latin) + Coquina (spanish) + Keong (english) = couquina (pertengahan abad ka-19)
saka argilla latin (lempung) lan -ite in english kang dadi agrilla + -ite = argillite
rock grained coarse, rock opaque
rock grained nggoleki, rock opaque