Hey gals, Has anyone tried this? I rec'd a sample of it, and I've used it the past two nights... seems so weird to be putting powder on my face before bed, but so far nothing terrible has happened. It might be my imagination, but I thought my skin looked a little dewier/fresher this morning. I'm curious to know if anyone uses this. Do you think the whole "jurassic earth" thing (what the rare minerals are called in the brochure) is a gimmick, or is there something to it? Thanks!