The facade bricks (non-perforated) have five sand covered sides and one side with possible oblong groove. The structure looks rugged with fine and irregular grooves in the sandy surface. The baking process takes place in a gas-heated tunnel oven under slightly reduced atmosphere.
The brick has a yellowish base, and the colour variations show pastel hues ranging from orange-red to dark red alternated with yellow shadings in accurately defined proportions.
The colours shown are a near reflection of reality.