'(<a href="http://www.j-archive.com/media/2008-12-08_DJ_24.jpg" target="_blank">Kelly of the Clue Crew holds a brick.</a>)  Brick commonly turns out red because of the oxidation of this metallic element in the earth'
iron
BRICKMAKING: Brick commonly turns out red because of the oxidation of this metallic element in the earth
Brick commonly turns out red because of the oxidation of this metallic element in the earth
Brick commonly turns out red because of the oxidation of this metallic element in the earth
BRICKMAKING
iron
BRICKMAKING