Mineral eye shadow -- medium to dark gray?

I love Bare Minerals, but shockingly, they don't seem to make a true gray eye shadow! I was in Sephora today and couldn't find a true gray, so I asked for help and was told they don't make a true gray. Hard to believe! I know there are other lines of mineral makeup out there, but I haven't tried any of them. Anyone have a recommendation for one that has a nice medium to dark gray shadow -- preferably a glimmer? Thanks!