Marseille is a natural ashlar style thin cut stone.  The stones have beautiful color variation and a great deal of veining.  Marseille has a colorful mix of greys, golds, and earthy browns.  The stone is shown here with a half-inch mortar joint but can also be drystacked. Drystack installation makes the colors pop as there is no mortar between the pieces and they contrast one another more.  Marseille has some beautiful large-sized pieces that fall between an ashlar and castle rock style stone. The stones are split back or what is referred to as natural back in the stone industry; they have not been sawn with the diamond blade.  This will have no impact on the installation or final appearance.