Domestic pottery sherds used in non-ferrous metalworking: a study from early medieval Prague
| Autor: | Martin Ježek, Jarmila Čiháková, Jan Zavřel |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010506 paleontology
Archeology Materials science 060102 archaeology Metallurgy Scrap 06 humanities and the arts 01 natural sciences Metal Cupellation Anthropology visual_art Metalworking visual_art.visual_art_medium 0601 history and archaeology Ceramic Pottery Gold extraction Chemical composition 0105 earth and related environmental sciences |
| Zdroj: | Archaeological and Anthropological Sciences. 11:5339-5358 |
| ISSN: | 1866-9565 1866-9557 |
| DOI: | 10.1007/s12520-019-00865-w |
| Popis: | Among archaeometallurgical remains from Prague of the tenth and eleventh centuries AD, attention has been focused on a single type of finds: fragments of common ceramic kitchenware secondarily utilised in assaying ores and in the production and refinement of non-ferrous metals. Fifteen samples from several sites were selected for EDS-SEM analyses of various parts of glassy, slaggy and metallic coatings, of metallic prills and of the primary and secondary mineral phases in these solidified melts. Variable intermediate products of silver and gold extraction were identified, as were examples of the successful cupellation and refinement of these metals. The secondary utilisation of silver scrap has been ruled out by the chemical composition of the coatings on the majority of sherds with a significant Ag content. In contrast, substantial concentrations of other metallic elements (e.g. Bi, Sn) and coatings of Cu- and Fe-sulphide mixtures in some samples correspond to the early stages of the metallurgical processing of non-ferrous metals (ore concentrates) or initial metallurgical intermediate products. |
| Databáze: | OpenAIRE |
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