The London Grey Tumbled 4"X12" is cool to the touch, it's surface is lightly textured and coloured in various nuanced shades of grey. It thus evokes an atmosphere rich in substance and narrative. Imagine yourself in an old English castle, walking its endless corridors on the faded footprints of long forgotten kings, in the presence of this sombre and dignified stone. London Grey Tumbled expresses the richness of a distressed element in its rounded edges and surface softened by the action of water and the pieces rubbing together, without the presence of any acids or chemicals.