Aleppo: Crucible Manufactures
Date: Thirteenth century
A special type of sand was sent from Jabal Bishr in northeastern Syria to Aleppo. This sand was used in the manufacture of crucibles for iron foundries.
Citation: Yaqut al-Hamawi, Jacut’s geographische Wörterbuch (Kitāb al-Muʿjam al-buldān), ed. Ferdinand Wüstenfeld (Leipzig: F. A. Brockhaus, 1866-73), I: p. 631.
See also: Milwright, Marcus. “Pottery in written Sources of the Ayyubid-Mamluk Period (c.567-923/1171-1517)”, Bulletin of the School of Oriental and African Studies 62.3 (1999): p. 508.