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how do i get gold dust out of sand

how do i get gold dust out of sand

Best and Easiest way to refine iron ore dust to get 999 purity Finishing Take 1 kg fine dust in 5 l glass beaker add 15 l aqua regia 1 part HNO3 3 part HCl hammer and a steel doll and hammer the iron ore till it takes the form of sand particles 9 karat iron ore

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