Aleppo: Makers of Bricks
The poor quality clay around Aleppo was used for making bricks, but they apparently easily fell apart. See also: Mason; Maker of Ceramic Pipes; Burners of Limestone and Gypsum.
Citation: Russell, Alexander. The Natural History of Aleppo, containing a Description of the City, and the principal natural Productions in its Neighbourhood. Together with an Account of the Climate, Inhabitants, and Diseases; particularly of the Plague, Second edition, revised, enlarged and illustrated by Patrick Russell (London: G. G. and J. Robinson, Pater-noster Row, 1794), I: p. 53.