After a bunch of north/south bridge and IC chips I am left with a ton of copper wire and small bit of gold. This is only some of it. It’s probably 99% copper. I’d really like to not have to dissolve all the copper in nitric to get to the gold. Is there any other method either chemical or manual? I have about 4 times what you see in the picture. I’ve tried panning and it’s not getting me very far.