Hard-burnt+brick

  • 111Mississippian culture pottery — is the ceramic tradition of the Mississippian culture (800 to 1600 CE) found as artifacts in archaeological sites in the American Midwest and Southeast. It is often characterized by the adoption and use of riverine (or more rarely marine) shell… …

    Wikipedia

  • 112clinker — clink|er [ˈklıŋkə US ər] n [Sense: 1; Date: 1600 1700; Origin: klincard type of brick (1600 1700), from Dutch klinkaard] [Sense: 2 3; Date: 1900 2000; Origin: CLINK1] 1.) [U and C] the hard material like rocks, which is left after coal has been… …

    Dictionary of contemporary English