Proceedings of the first International Symposium of the Verre et Histoire Association, Paris-La Défense / Versailles, October 13-15 2005

Dr. Olivier SCHALM, Prof. Dr. Koen JANSSENS,
University of Antwerp, Dept. of Chemistry, Antwerp (Belgium)
Hilde WOUTERS, Instittuut voor het Archeologisch Patrimonium, Asse-Zellik (Belgium)
Danielle CALUWÉ, Free University of Brussels, Dept. Of Archaeology, Brussels (Belgium)

Composition of 12tth-18th century window glass in Belgium: non-figurative windows in secular buildings and stained-glass windows in religious buildings.

Linear relation between Na2O and Cl for the 15-17th century

Fig. 6: The linear relation between Na2O and Cl for the 15-17th century HLLA glass. Most of the medieval glass does not follow this relation. The symbols are related to the compositional groups of Table I.