Here are pictures of our recent tiling adventure in the kitchen. Jen M. decided on slate, which comes in random colors and textures. The goal was to simulate a patio and feel outdoor-ish.
Here Bill N. has some tiles adhered. We have cementatious backerboard under the slate and used a thinset adhesive. The work is tedious. Sweep, then wet-sponge for dust, the smear on thinset, then lay tile, then let dry, then clean with a sponge, then apply sealer, then apply a second coat of sealer. Remaining is grout, then grout sealer.
Here is a picture of how random the tiles are.