aqua regia

Most people know me as the guy who invented the Gold Well sluice. This sluice recovers very fine gold very well. The big problem as one of my customers indicated, was how to get the fine gold out once you recover it in the sluice. My preferred method is just add up the concentrates with the...

I finally got it down.. (damned nitric acid!) anyhoo this is from 100 ML of fine ground pre-etched (nitric to remove copper tin etc), gold cubed, and panned ore. (the "Floating gold" we just jar) I have found a lot of ""nuggets"" but they all end up having a lot of ore attached to it.. to get...