Gorgeous but thin, very thin. Shell tile is crisp thin. Probably ok to go over existing tile backslash. I would not use in a high traffic area, floor, or anywhere in a shower. Tile has a semi glossy sheen iridescent white, gray, beige color to it. If you are trying to mix beige with gray and/or white color scheme, this tile will work wonderfully. Goes well with transitional and contemporary settings. Can also use in modern setting depending on what is being mixed with the tile. However, the pattern, finish, and colors scream transitional and contemporary. It is very pretty.