Pre-industrial glassmaking in the Swiss Jura: the refractory earth for the glassworks of Derrière Sairoche (ct. Bern, 1699–1714)
- Eramo, Giacomo Department of Geosciences, Mineralogy and Petrography, University of Fribourg, Switzerland
-
2006
Published in:
- Geological Society, London, Special Publications. - 2006, vol. 257, no. 1, p. 187-199
English
Fragments of the melting furnace and several crucibles of the glassworks of Derrie`re Sairoche are compared with local raw materials. Principal component analysis (PCA) based on the chemical composition and on the grain-size distribution of the archaeological and natural materials demonstrates that the analysed samples were made from the same raw material and that local clayey sands (Hupper, Side´rolithique) were exploited. Availability in situ of good raw materials made tempering unnecessary. Their high melting point (c. 1600°C) allowed good performance in service conditions at temperatures up to 1500°C. Moreover, because of low Fe₂O₃tot concentrations, batch-glass contamination was avoided.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Géosciences
- Language
-
- English
- Classification
- Archeology
- License
- License undefined
- Identifiers
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- RERO DOC 5747
- DOI 10.1144/GSL.SP.2006.257.01.15
- Persistent URL
- https://folia.unifr.ch/unifr/documents/300179
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