Published online by Cambridge University Press: 20 January 2017
Excavations of protohistoric Arikara sites in South Dakota have produced native manufactured blue-glass pendants in association with burials. On the basis of archaeological and laboratory evidence, it is conjectured that the Arikara produced these pendants by first grinding blue-glass seed beads to form a powder. They then moistened the powder to form a paste and shaped and fired the paste to the desired form on a copper plate which often was a rifle butt plate. In addition, it is shown that, through time, the Arikara gradually refined their techniques to produce better made pendants and ornaments of different shapes.