We are looking at using varying sizes of tumbled stone in our bathroom (10x10 for the floor, and 4x4 and 4x2 for the walls and shower area.) Tumbled stone looks VERY porous... there are dozens of "holes" and cracks in the tiles (which *are* part of the look). However is this even a prcatical option in a room that is consistently wet? Even with proper sealent, is this going to be a headche to clean, or reseal constantly? Is it worth it?