References of "Calligaro, Thomas"
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See detailLes grenats dans l’orfèvrerie mérovingienne
Mathis, François ULg; Vrielynck, Olivier; Annaert, Henrica et al

Conference (2010, August)

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See detailDiscovery and characterization of an unknown blue-green Maya pigment: Veszelyite
Moreno, R Garcia; Mathis, François ULg; 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 ▲]

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See detailExploring Advantages of 4He-PIXE for layered Objects in Cultural Heritage
Röhrs, Stefan; Calligaro, Thomas; Mathis, François ULg et al

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2006), 249

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