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Article dans une revue Archaeological and Anthropological Sciences Année : 2018

Glassmaking using natron from el-Barnugi (Egypt)

Résumé

Pliny the Elder describes the discovery of a processfor making natron glass, which was widely used for much of the first millennium BC and AD. His account of glassmaking with natron has since been corroborated by analyses of archaeological glass and the discovery of large-scale glass production sites where natron glass was made and then exported. Analyses of Egyptian natron have shown it to be a complex mixture of different sodium compounds, and previous experiments to make glass with Egyptian natron have been unsuccessful. Here, natron from el-Barnugi in the Egyptian Nile delta, a site which also probably supplied Roman glassmakers, is used to produce glass. The experiments show that highquality glass, free of unreacted batch or bubbles, could have been produced from natron in its unprocessed form in a single stage, that larger quantities of natron would be required than has previously been anticipated, that the presence of different sodium-containing compounds in the deposit aided melting, and that negligible waste is produced. The implications for the identification of glass production sites, for the organisation of trade and for the supply of natron within and outside Egypt are discussed in the light of Pliny’s accounts.
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Dates et versions

halshs-03330959, version 1 (01-09-2021)

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Marie-Dominique Nenna, Patrick Degryse, S. Paynter, Caroline Jackson. Glassmaking using natron from el-Barnugi (Egypt): Pliny and the Roman glass industry. Archaeological and Anthropological Sciences, 2018, 10 (5), pp.1179-1191. ⟨10.1007/s12520-016-0447-4⟩. ⟨halshs-03330959⟩

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