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Showing results 81 to 100 of 142
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  Discovery and characterization of an unknown blue-green Maya pigment: VeszelyiteMoreno, R Garcia; Mathis, François  ; Mazel, V. et al in Archaeometry (2008), 50(4), 658-667 Blue-green mosaic and polychrome masks and funerary offerings from the royal tombs of Calakmul, Mexico, were analysed by scanning electron microscope equipped with energy dispersive X-ray spectroscopy ... [more ▼] Blue-green mosaic and polychrome masks and funerary offerings from the royal tombs of Calakmul, Mexico, were analysed by scanning electron microscope equipped with energy dispersive X-ray spectroscopy (SEM-EDS), X-ray diffraction (XRD), and particle induced X-ray emission (PIXE). This led to the first identification of the use of veszelyite, a rare hydrated copper-zinc phosphate, as green pigment. Analyses of a geological sample of this mineral have been done to confirm the characterization of this Mayan pigment, which might help determine pre-Columbian trade routes of precious and luxury objects in the ancient Maya Classic period (ad 250-800). [less ▲] Detailed reference viewed: 65 (11 ULg)
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