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Material is gold filled mixed. I'm getting close, 97% typically but the weird thing is the majority of the trace metals are silver. That doesn't make any sense to me since AG should turn to chloride in AR should it not? Copper would be understandable, but AG? Unless it is undissolved but that doesn't make any sense to me either. On the final nitric I usually am 50/50 with distilled water and have very little if any reaction. Any pointers?