Our bathroom floor is called "Mexican Agate" and it has beautiful turquoise and beige "stones" in, althought it's only a new-fangled linoleum. I love the patterns, especially the "faces" I find in the designs!
I do the same thing with the marble in my bathroom! I lie there and congure up all kinds of creatures as I soak in the tub! LOL! I see a cow in that last shot!