I did another set of Aurae beads listed on eBay right now. I had done a test bead with a base of Dark Ivory and the Aurae fumed it to an odd dark yellowish brown. I really wanted something more elegant looking so I used Silver Pink, thinking that it wouldn't be effected by the Aurae at all. Wrong! It did turn a pretty yellow though that looks more like antique lace so I was still very happy.