Gold powder


I tried to make a coaster just to see what would happen with the gold powder.    I used different colored frit and added the powder to it between two 3″ clear glass circles.  The edges fused before the frit and powder melted and a gas occurred in the middle of the circles creating a bubble that is at least 1 1/2 to 2 inches across and 1/2 inch high.   The glass in the middle of the bubble didn’t melt but created a rattle.   I did find out that the “gold” powder is mostly copper.   I have a beautiful blue “blob” on one side and you can see copper splotches on the underside.  Although it really looks cool and I won’t be doing this again curiosity wants me to to see what I’d get next time. 


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