Gold Recovery: 8 Steps (with Pictures)
Take your cleaned gold flakes and weigh them, this tells you how much you lose in melting and cupellation when melting the flakes. Heat your clay bowl, don't worry if the bowl cracks or splits, add borax to the hot bowl, when the borax melts add the gold flakes and more borax then heat until you get a nice bead of gold, let it cool and weigh to see how much you lost.