I'm looking for a Granite-Gray nail polish color..?

I've looked everywhere i can think of! I've googled it, yahoo!ed, dogpiled, msn.ed, nothing. i just want to find a granite-gray nail varnish/polish color. nothing shiny or glittery. just plain, old, dull, colorless, boring, gray. And please don't give me any answers asking WHY i would want the color, i just do.