I went by my pro store today to check if there was anything else I wanted and to get The Great Enabler's opinions (he was nonplussed as well, although I did pick up a couple of things). While I was there, the store manager said that there is a great collection coming out in June called "Semi-Precious", made up of products that actually have semi-precious stones in them.
I have to say that my first reaction was "ew, gritty", but I'm assuming that they'd be ground up fine enough that you wouldn't feel them... Seems interesting. I'm not sure what sort of effect you would get from this. I believe she said that these were lip colours.