You’ve found some nuggets with your metal detector. You finally retrieve them from the ground. You can see they’re gold, but they don’t look very shiny! They’re covered in clay, mud, soil, perhaps with bits of quartz still sticking to them. Maybe it’s even covered in ironstone, the famed ‘black gold’! How do you go about cleaning gold nuggets to make them look as good and shiny as they can?

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