Mural Paintings Characterisation Using X-ray Fluorescence and Raman Spectroscopy—A Case Study: Nossa Senhora das Neves Chapel, Vilar de Perdizes, Galicia—North Portugal Euroregion
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Mural Paintings Characterisation Using X-ray Fluorescence and Raman Spectroscopy—A Case Study: Nossa Senhora das Neves Chapel, Vilar de Perdizes, Galicia—North Portugal EuroregionAuthor(s)
Date
2023-11-21Citation
Freire-Lista, D.M.; Vázquez, E.; Barreiro Castro, P.; Salavessa, E.; Costa, M.d.R.; Moreira, R.; López, A.J. Mural Paintings Characterisation Using X-ray Fluorescence and Raman Spectroscopy—A Case Study: Nossa Senhora das Neves Chapel, Vilar de Perdizes, Galicia—North Portugal Euroregion. Heritage 2023, 6, 7277–7292. https://doi.org/ 10.3390/heritage6120382
Abstract
[Abstract]: Sixteenth-century mural paintings of Nossa Senhora das Neves in Vilar de Perdizes
(Galicia—North Portugal Euroregion) were analysed. An iconographic study has allowed us to
understand the meaning of the seven scenes that constitute the mural painting. X-ray fluorescence
(XRF) and Raman spectroscopies determined the compounds used in this mural painting, both in
the original and in later repaintings. The black paint was bone black. Hydroxyapatite characteristic
bands and those of the associated phosphates have been identified. White lime was used as white
paint. Lepidocrocite and goethite were used to make yellows, and hematite was used to make red
shades. Cinnabar has been used for a later red repaint. Carbon-based compounds and rutile were
used to create different tonalities by darkening or lightening colours. It is of great significance to
obtain accurate and reliable mural painting information through scientific means, since preservation,
restoration, and repainting without detailed information can be harmful to mural paintings.
Keywords
Pigment
Frescoes
Hydroxyapatite
Lepidocrocite
Cinnabar
Trás-os-Montes
Frescoes
Hydroxyapatite
Lepidocrocite
Cinnabar
Trás-os-Montes
Description
Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
Editor version
ISSN
2571-9408