Article ID: CBB558591304

Materials, Furnaces, and Texts: How to Write About Making Glass Colours in the Seventeenth Century (2020)

unapi

Johann Kunckel's Ars Vitraria Experimentalis (1679) is arguably the most important text on seventeenth-century glassmaking. As an augmented German translation of Italian (1612) and English (1662) editions, Kunckel presented a complex and layered text that contained a plethora of recipes, elaborate commentaries and annotations, and various appendices dealing with glass-related technologies and arts. We reworked four recipes for rosichiero glass (a transparent red glass) in Kunckel's book to discover what strategies Kunckel employed to help readers engage with the recipes and to make the recipes work in the specificity of their own workshop. We learned that Kunckel regularly neglected to test the Italian recipes, and that not all of his corrections are improvements, thereby specifying our understanding of the “codification of error” as a strategy to write down colour-making knowledge. Instead, Kunckel made the choice to educate his readers on the very mechanisms of glass colouring to allow them to intervene to influence the colour of the glass and to gain further control over the making process. He argued that the colour of glass is sensitive to the manner in which ingredients are sourced and processed, and emphasised the importance of furnace management in optimising the colour of glass.

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Authors & Contributors
Thea Goldring
Robbins, Amy S.
Verena Wasmuth
Vinzenz Brinkmann
Smart, Pamela G.
Ulrike Koch-Brinkmann
Journals
Technology and Culture
Nuncius: Annali di Storia della Scienza
Medizinhistorisches Journal
Ferrum
Technai, An International Journal for Ancient Science and Technology
TG Technikgeschichte
Publishers
State University of New York at Binghamton
Johns Hopkins University Press
University of Toronto
Concepts
Glass and glassmaking
Materials science
Color
Manufacturing
Science and art
Chemistry
People
Kunckel von Loenstern, Johann
Neri, Antonio (d. 1614)
Jabir Ibn Hayyan, Abu Musa, Al-Tusi
Neri, Antonio
Medici, Francesco Maria de'
Keir, James
Time Periods
17th century
Early modern
19th century
18th century
8th century
Renaissance
Places
Florence (Italy)
Italy
Great Britain
Bristol (England)
England
Czechoslovakia
Institutions
Chance Brothers and Company
Corning Museum of Glass
Accademia del Cimento, Florence
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