I heard about the new "nanogems" for firing and including in Metal Clay. Cubic Zirconias that are "fire in place" can be used in lampwork (assuming they are small enough) - and you know - emailing the company and asking what the COE of the item is - that's a lost cause. First you have to explain what COE is. Then you aren't going to get an answer anyway.
So - I just bought some and tried it.
Oh well - it was worth a shot.
Well - doesn't work with 104 COE glass. Maybe I should try with boro?