Hey guys, wasn't my doing but a guy brought me some borax that he had melted scrap gold in with diamonds in the gold. We have an agreement to split the diamonds and gold if I can get it out for him. I have recovered gold from borax many times with no problem, however, I do not want to melt and add soda ash or fluorospar to thin it and risk burning up the diamonds (if they aren't already completely gone, however going through a sample of it shows that at least enough diamonds survived to make it worth it). I know water can dissolve a lot of the white borax powder, but the more glassy melted stuff will not dissolve in that. Is there an acid I can use to dissolve the rest of it? I know from experience that sulfuric is not very good at doing this. Any help is greatly appreciated.
