The making of, formed the chief labour of the Israelites in Egypt (Exodus 1:13,14). Those found among the ruins of Babylon and Nineveh are about a foot square and four inches thick. They were usually dried in the sun, though also sometimes in kilns (2 Samuel 12:31; Jeremiah 43:9; Nahum 3:14). (See NEBUCHADNEZZAR .)
The bricks used in the tower of Babel were burnt bricks, cemented in the building by bitumen (Genesis 11:3).
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Bricks'". "Easton's Bible Dictionary".