Recycled Glass Mosaic Tile Elementile 12mm are sold by the 1/2 pound (approximately 185+ pieces), which covers slightly over 1/3 of a square foot with a standard grout gap of 1/16 inch. The 1/2-inch size is sufficiently large for conventional applications, but the material cuts very cleanly into small pieces that can be used for micromosaic artwork. These are hard and durable and can be used for the exteriors of commercial buildings. Mounting grids are available. Click on a color to see the full product description.