Hessian crucible

<p>A Hessian crucible is a type of <a href="/facts/Ceramic/9JKudpqX">ceramic</a> <a href="/facts/Crucible/o7WrIqhu">crucible</a> that was manufactured in the <a href="/facts/Hesse/kEmEjUK9">Hesse</a> region of Germany from the late <a href="/facts/Middle_Ages/RqzEKB9v">Middle Ages</a> through the <a href="/facts/Renaissance/4D9Bc6KU">Renaissance</a> period. They were renowned for their ability to withstand very high temperatures, rapid changes in temperature, and strong <a href="/facts/Reagent/c3GLInCu">reagents</a>. These crucibles were widely used for <a href="/facts/Alchemy/CEx0U1Em">alchemy</a> and early <a href="/facts/Metallurgy/1SANyxX4">metallurgy</a>.  Millions of the vessels were exported throughout Europe, Scandinavia, and the colonies in <a href="/facts/The_Americas/hEuUTL4K">the Americas</a>. The crucibles were made by firing <a href="/facts/Kaolin/N7D6K65q">kaolinitic clay</a> at temperatures greater than 1100°C, forming <a href="/facts/Mullite/BXhyUN8z">mullite</a>. Mullite is an aluminum silicate only described in the 20th century and is responsible for the excellent properties of the Hessian crucible.
Main production centre of the Hessian crucibles was the village of <a href="/facts/Gro%C3%9Falmerode/wVoQAA6h">Großalmerode</a>.
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Hessian crucible open-in-new

Hessian crucible