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Table 3 Chemical composition obtained by SEM–EDS expressed as atomic percentage (point analysis)

From: Polychromy in Roman Portraits from Asido (Medina Sidonia, Cádiz, Spain). Livia, Germanicus and Drusus Minor

  O C Na Mg Al Si P K Ca Fe Cu
Livia’s 2.1—spectrum 1 63.0 25.5 5.8 4.9
Livia’s 2.2—spectrum 2 63.1 25.0 6.1 4.9
Livia’s 4—spectrum 1 59.9 13.9 9.8 14.3
Livia’s 4—spectrum 2 60.3 14.7 9.8 13.8
Livia’s 1—spectrum 1 53.6 13.1 5.2 8.4 17.6 1.6
Livia’s 1—spectrum 2 59.5 22.1 10.1 1.9
Livia’s 1—spectrum 3 42.4 46.9 6.1 3.8
Livia’s 1—spectrum 4 51.7 35.7 5.2 7.4
Livia’s 1—spectrum 5 19.3 73.3 1.6 4.6 1.2 0.5
Livia’s 1—spectrum 6 46.1 44.1 2.9 3.0 3.9
Livia’s 1—spectrum 7 70.01 6.3 7.9 7.5 8.3  
Livia’s 1—spectrum 8 34.4 55.0 1.2 1.5 6.0 0.4 0.9