I drop some gold from solution but nothing hapens,so i leave it for 15_20 minut and after that i have nice drop.So i decidet to show you howe look when Smb hase delayed reaction.Reason for this is many,from more active Nitric acid in solution or Chlorine as,to micro metal particles present.Just leave it for a vhyle,in much cases your gold will drop after 30 min,like in my case now.Or if not,then cement it with solid copper and repeat refine step and drop aain.See you guys!

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