Fig. 11From: An archaeometric contribution to the interpretation of blue-green glass beads from Iron age Central ItalyLA-ICP-MS data obtained in this work for some chemical elements reasonably related to the source of silica, compared with some published data. La vs Eu (top), Ti vs Th (bottom). External data refers to glass from: Nuzi LBA, Tell Brak LBA, Amarna LBA, Malkata LBA – [69]; Bologna IA – [70]; Pella IA and Nimrud IA – [71]Back to article page