SCIENTIFIC ANALYSIS OF SEVENTH-CENTURY GLASS FRAGMENTS FROM THE CRYPTA BALBI IN ROME
| Autor: | L. Saguì, P. Mirti, A. Lepora |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Archeology
History Opacity inductively coupled plasma emission spectroscopy technology x-ray diffraction crypta balbi rome late antiquity reflectance spectroscopy glass italy Analytical chemistry Opacifier chemistry.chemical_element Manganese Copper Pigment Colourant chemistry Antimony visual_art visual_art.visual_art_medium Chemical composition |
| Zdroj: | Archaeometry. 42:359-374 |
| ISSN: | 1475-4754 0003-813X |
| DOI: | 10.1111/j.1475-4754.2000.tb00887.x |
| Popis: | Inductively coupled plasma emission spectroscopy, reflectance spectroscopy and X-ray diffraction were used to study seventh-century AD glass fragments from the Crypta Balbi in Rome. All the samples were found to be silica-soda-lime glasses. Iron determines the colour of blue-green, green and yellow-green transparent glasses; chemical composition suggests deliberate addition of iron and/or manganese in about half the samples. Copper was found as the main colourant in red, pale blue and blue-green opaque fragments; elemental copper acts as an opacifier in red glass, and calcium antimonate in white, pale blue and blue-green glasses. Detection of antimony in transparent fragments suggests recycling of opaque mosaic tesserae. |
| Databáze: | OpenAIRE |
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