Nice set of grays.
"The floor is a natural stone, black quartzite. The client loves the dark color and the uneven texture. We brushed the tiles that were used in the shower in order to provide additional slip co-efficiency.
If we were to do this all over again, we may have opted for a DalTile porcelain called Era. It comes in a very dark grey/black called Olos and would require much less maintenance than the natural stone. The Era series comes in a polished, matte (unpolished) and structured finish. The matte provides plenty of slip co-efficiency for Universal Design and the structured finish would be excellent for the shower area.
Overall, the natural stone is very nice and the uneven textures are unique and interesting."