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Chemical and mineralogical analyses of Gallo-Roman wall painting from Dietikon, Switzerland

Journal Title, Volume, Page: 
Archaeometry Volume 38, Issue 1, pages 81–95, February 1996
Year of Publication: 
Hamdallah A. Béarat
Institute of Mineralogy and Petrography, Fribourg University, Pérolles, CH-1700 Fribourg, Switzerland
Current Affiliation: 
Department of Materials Science, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Preferred Abstract (Original): 
Around 90 samples of Roman wall painting dating from the first to the third century AD were analysed using different analytical techniques: X-ray diffraction, X-ray fluorescence, infrared spectrometry, scanning electron microscopy, energy dispersive spectrometry, optical microscopy and physico-chemical tests. The identified pigments are: ash, calcite, carbon black, celadonite, cinnabar, Egyptian Blue, glauconite, goethite, hematite and red lead. Pigment mixtures were used to get other colours such as brown, pink or purple. Three types of plaster were used: a first, and most dominant, with river sand, a second with crushed tile for damp places and a third, to which cinnabar was exclusively applied, was prepared with crushed calcite crystals.
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