Evaluation of portable Raman spectroscopy and handheld X-ray fluorescence analysis (hXRF) for the direct analysis of glyptics

Lauwers, Debbie; Candeias, António; Coccato, Alessia; Mirão, José; Moëns, Luc; Vandenabeele, Peter

doi:10.1016/j.saa.2015.12.013

Cited by 24 publications

(17 citation statements)

References 43 publications

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“…The purpose of this work is to describe possible difficulties that are encountered during in situ Raman measurement of Patagonian prehistoric rock art, and some possible improvements are suggested. The portable Raman spectrometer used in this project was also applied in previous studies, covering a broad range of artefacts, such as the analysis of a mediaeval wall painting, glass glyptics, illuminated mediaeval manuscripts, 16th century majolica tiles, the ‘Mad Meg’ oil painting by Pieter Bruegel the Elder and identification of different minerals . Its application for the direct analysis of rock art paintings from Patagonia, Argentina, is described and discussed for the first time in this paper.…”

Section: Resultsmentioning

confidence: 99%

The first use of portable Raman instrumentation for the in situ study of prehistoric rock paintings in Patagonian sites

Rousaki

Vázquez

Aldazabal

et al. 2017

J Raman Spectroscopy

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Portable Raman spectroscopy is applied for the first time on rock art paintings from hunter‐gatherers in three different provinces in Patagonia, Argentina (Neuquén, Río Negro and Chubut). Selected archaeological sites were examined, revealing the local ‘palette’ of the native population and, if possible, the technology used. Moreover, alteration products were investigated to obtain valuable information for a better conservation and preservation of these magnificent rock art paintings. During a single research campaign, 16 shelters and one cave were investigated, which makes this study as one of the most condensed expeditions on measuring rock art paintings. Here, we evaluate the use of our portable Raman instrument to analyse rock art paintings under extreme conditions in Patagonia, Argentina. Several improvements are proposed to maximize the quality of the research output in such condensed expeditions. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

The first use of portable Raman instrumentation for the in situ study of prehistoric rock paintings in Patagonian sites

Rousaki

Vázquez

Aldazabal

et al. 2017

J Raman Spectroscopy

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“…The great majority of publications on the topic, however, are devoted to the technical examination of specific types of artifacts or classes of cultural heritage materials. Relevant examples comprise minerals and gemstones, among which glyptics—namely, engraved gemstones originally used as identification stamps that were applied, for instance, on letters or wine vessels—are particularly interesting; enamel and stained glass, as well as Roman mosaic glass tesserae; a 16th‐century majolica floor in a castle's chapel; Medieval illuminated manuscripts; Medieval and Renaissance wall paintings; and rock art . In some instances, Raman spectroscopy has been combined with other laser‐based techniques in the form of mobile equipment.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and optimization of the potential of a handheld Raman spectrometer: in situ, noninvasive materials characterization in artworks

Pozzi

Basso

Rizzo

et al. 2019

J Raman Spectroscopy

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Decades of technological and methodological advances in Raman spectroscopy have brought this technique from laboratory innovation to a well-established analytical tool with increasing applicability to the study of cultural heritage objects. Enduring research in the field of miniaturization has given rise to new generations of mobile, portable, and handheld spectrometers that have deeply transformed the way in which scientists approach materials analysis. Although sometimes limited in terms of performance and flexibility compared with their benchtop counterparts, miniaturized instruments are typically compact and light, user-friendly, and equipped with fiber optics and batteries, thus

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“…In these perspectives, the recent design of mobile equipments allows characterizing archeological materials directly in situ, without sampling. [8] Among the different noninvasive methods, X-ray fluorescence (XRF) and Raman spectroscopy based on portable instruments have been demonstrated to be powerful techniques in the archeometric studies of artistic and archeological artifacts. [9][10][11][12][13][14][15][16] In this work, the color palette of a selection of vases currently exhibited at the Regional Museum in Lipára (Figure 1) has been characterized by portable XRF and portable Raman spectrometers, with the aim to complement and enrich our knowledge about the early Hellenistic Sicilian polychrome vase production.…”

Section: Introductionmentioning

confidence: 99%

Pigments characterization of polychrome vases production at Lipára: New insights by noninvasive spectroscopic methods

et al. 2017

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One of the most impressive Sicilian pottery production is attributed to the socalled Lipari Painter and his followers, whose vessels-found in the archeological site of Lipari (Aeolian Island, Sicily)-are decorated with characteristic blue, red, and white figures. From the archeological point of view, these artworks keep open many questions concerning dating, production technique, and cultural background. In this context, new data on the manufacture procedures and on the raw materials used for the pigments may contribute to a deeper comprehension of this early Hellenistic vase tradition. The preciousness of the vessels, exhibited at the Archeological Museum of Lipari, imposed the use of in situ nondestructive methods to address new insights on the nature of the colored layers. Thus, analyses by Raman and X-ray fluorescence spectroscopy have been performed with portable instruments on a selection of vessels certainly attributed to Lipari Painter and to some others of his followers. The results of this study testify the use of different pigments: kaolin and gypsum, probably supplied locally, for white layers; Egyptian blue for blue hues; red ochre for brown-reddish hues; and cinnabar for pink and red-purple nuances. The identification of both Egyptian blue and cinnabar opens an interesting discussion about dating and circulation of the raw materials.

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Evaluation of portable Raman spectroscopy and handheld X-ray fluorescence analysis (hXRF) for the direct analysis of glyptics

Cited by 24 publications

References 43 publications

The first use of portable Raman instrumentation for the in situ study of prehistoric rock paintings in Patagonian sites

The first use of portable Raman instrumentation for the in situ study of prehistoric rock paintings in Patagonian sites

Evaluation and optimization of the potential of a handheld Raman spectrometer: in situ, noninvasive materials characterization in artworks

Pigments characterization of polychrome vases production at Lipára: New insights by noninvasive spectroscopic methods

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