Here were have four boxes of 4"x4" wall tile from Ait Manos, a high-end Morrocan tile manufacturer, in a color they call "White Carrere." Looks to be handmade, hand-glazed and hand-cut terra cotta tile, that's suitable for damp environments. 50 pieces per box, so looks to be a little over 22 square feet. Retails for about $40 a square foot.