Fig. 7From: Islamic copper-based metal artefacts from the Garb al-Andalus. A multidisciplinary approach on the Alcáçova of Mārtulah (Mértola, South of Portugal)Iron content within the artefacts analysed from Mértola according to the different type of alloys (A). Bivariate scatterplot showing zinc versus iron contents within brass artefacts (B)Back to article page