Fig. 6From: Geo-archaeology, archaeometry, and history of a seismic-endangered historical site in central Apennines (Italy)Ternary plot diagram of SiO2 vs PbO vs Al2O3 + Na2O + MgO + K2O + CaO + FeO of the glaze composition from different localities compared with St. Angel Cave glazes. Pottery. St. Angel Cave's 9th pottery (red circles); Nogara's 9th pottery (black circles) [53].Back to article page