Colorimetric characterization of ochres in a Palaeolithic flint pebble from Maschio dell’Artemisio, Latium, Italy

Botticelli, Michela; Altamura, Flavio; Catelli, Eliana; Pronti, Lucilla; Medeghini, Laura; Mussi, Margherita; Maras, Adriana

doi:10.1016/j.jasrep.2022.103420

Cited by 1 publication

(2 citation statements)

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“…Therefore, based on these values, both analyzed samples are represented by an ocher with a predominant content of goethite, a result that is also verified through compositional investigations. goethite with hematite (orange) [47,48]. Therefore, based on these values, both analyzed samples are represented by an ocher with a predominant content of goethite, a result that is also verified through compositional investigations.…”

Section: Colorimetric Analysissupporting

confidence: 62%

“…Based on the colorimetric results, a series of comparisons can be made indicating the mineral nature of the pigment. Thus, it was highlighted that in the case of the a* coordinate, values below 17 indicate the predominant presence of goethite (yellow), those above 30 indicate pure hematite (red), and those between 20 and 35 indicate a mixture of goethite with hematite (orange) [47,48]. Therefore, based on these values, both analyzed samples are represented by an ocher with a predominant content of goethite, a result that is also verified through compositional investigations.…”

Section: Colorimetric Analysismentioning

confidence: 52%

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Technological and Functional Approaches Applied to Miniature Vessels with Pigment Traces: Two Middle Bronze Age Case Studies from Eastern Subcarpathians of Romania

2023

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Vessels with a special shape have always been a point of interest for pottery studies, especially from the perspective of the distinct functionality that these pots would have had. The ceramic typologies made for the miniature finds specific to the Middle Bronze Age in the Eastern Carpathian area include a series of such vessels attributed to the Costișa communities. Currently, the role of these pots is still under debate, being classified as ritual or special, which led to two case studies focused on investigating these miniatures. The analyzed vessels come from the Piatra Neamț—Bâtca Doamnei and Siliștea—Pe Cetățuie settlements (Neamț County), where these containers were discovered with traces of pigment or in association with colored minerals. These findings led to a series of questions related to their use, as it is known that in the Middle Bronze Age there are not many archaeological discoveries that explain the presence of pigments in the studied area. In this sense, multiplication of information was achieved by performing detailed analyses, such as optical microscopy (texture and surface details), colorimetry CIE L*a*b* (color investigation), SEM-EDX (elemental composition) and µ-FTIR (chemical compounds). The results of the interdisciplinary study led to new data on the nature of the pigment and the method of preparation, and also clues on the source of the raw material. Thus, these items illustrate the special use of miniature vessels and their probable functions.

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Section: Colorimetric Analysissupporting

confidence: 62%

Section: Colorimetric Analysismentioning

confidence: 52%