Sold per tile. Pure White Thassos marble from Greece with dramatic unstructured soft to deep blue/grey veining in a traditional subway tile beveled to enhance visual depth. Thassos White is a bright white marble, prized for its minimal variations in color and shimmering crystalline characteristics. Field Tile Size: 3 x 6 in., 3/8 in. thick Commercial & residential kitchens & bathrooms; walls, floors, backsplash, shower wall, tub surround, accent niche, accent wall.