Hate to be contrarian here,
Hate to be contrarian here, but I doubt that what you have is gold. I don’t think anyone would give out gold pieces for free unless they were decals.
If they are decals, the first thing you need to do is remove the top tissue. I have seen students leave the tissue on without realizing it.
Firing schedule for decal firing is the same as fewelry schedule except vent the kiln to 1000°F
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