Mosaic Tiles Uk Help Me Find A Grey Mosaic Tile!?

Help me find a grey mosaic tile!? - mosaic tiles uk

Need to find a place in the United Kingdom that sells this type of mosaic
Application: Floors and Walls
Color: mixed white / gray / dark gray (natural or bleached) (No shades of black or other colors)
Shape: square, and preferably flat.

Here is a picture of what might look like this:
http://www.vetromattone.it/Images/mosaico/mix-grey.jpg

Thank you!