Furger, Alex R. and Helfert, Markus. (2023) The origin of the clays of the Roman crucibles from Augusta Raurica (Augst, Switzerland): A study with field and museum work using portable analysis pXRF. Basel / Frankfurt am Main.
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Abstract
The project involved analysing 893 Roman crucibles for non-ferrous alloys from Augus-ta Raurica (Switzerland) using laboratory and portable devices. This resulted in the identification of 5 clay groups, which were compared to 60 reference groups from the surrounding area. Most of the crucible clays came from 2 clay deposits, one of which was located nearby, while the other was situated 50 km away in the Jura region.
The metals casted show a large variety of bronze- and brass-alloys, due to scrap-recycling. Brass making by cementation could be proved in many crucibles.
The crucibles were composed of two layers: a wheel made core of fired ceramic and a lutum layer made of local materials applied to the exterior (and sometimes a thin engobe applied to the interior). In the casting process, the mechanically stabilising and insulating lutum swelled up and vitrified considerably.
The metals casted show a large variety of bronze- and brass-alloys, due to scrap-recycling. Brass making by cementation could be proved in many crucibles.
The crucibles were composed of two layers: a wheel made core of fired ceramic and a lutum layer made of local materials applied to the exterior (and sometimes a thin engobe applied to the interior). In the casting process, the mechanically stabilising and insulating lutum swelled up and vitrified considerably.
Faculties and Departments: | 12 Special Collections > LibrumOpen |
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Item Type: | Book |
Book Subtype: | Authored Book |
Publisher: | LIBRUM Publishers & Editors LLC |
Number of Pages: | 18 |
Language: | English |
Identification Number: |
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Last Modified: | 23 Oct 2023 15:52 |
Deposited On: | 23 Oct 2023 15:52 |
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