slack-dried

Updated: July 7, 2025

The baked bricks of later date are of larger size than the earlier; they are commonly about 13 inches square, with a thickness of three inches. The best quality of baked brick is of a yellowish-white tint, and very much resembles our Stourbridge or fire brick; another kind, extremely hard, but brittle, is of a blackish blue; a third, the coarsest of all, is slack-dried, and of a pale red.

George Rawlinson - The Seven Great Monarchies Of The Ancient Eastern World, Vol 1: Chaldaea : The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations.