Black Sand Magnets for cleaning up your gold panning concentrates. Don't forget to grab the second best tool too - a snuffer bottle! Gold magnets are an invaluable tool for the final stage of gold panning. Removing those pesky iron based black sands or magnetite from your concentrates can be a real chore. Make your fine gold recovery much easier with one of our proven black sand gold magnets. Works best dry - but will work wet as well.