Trial #5 - Lots of Variables

There are a lot of things to check for in this trial, but I am not sure I can determine what caused what with so many variables to choose from.

Trial #5 - Layers for reactive test.  Bottom layer is clear glass, then rectangle of silver foil, followed by white fine frit in lower left, clear string, French vanilla fine frit, then light cyan fine frit.  All is topped with clear glass. 

The white fine frit on top of silver appears to have turned metallic gold.  The french vanilla turned dirty brown against the cyan.  If you look very closely inside the cyan star, you will see that a few of the frit granules have a light green tinge; not the pronounced green of the Bullseye example, but a move in the reactive direction.

Trial #5 (rotated)

Notice that around the sides of the clear stringer, there are some tinges of metallic gold.  That suggests to me that the stringer allowed escaping gases to move away from the concentration of frit and react in some way with the silver.  The stringer also carries the largest air/gas bubble in the piece.  Notice the pattern of bubbles around the outer edges of the cyan star - a space also fairly far away from access to the egress the stringer seems to provide.   Lots to think about here!