Smelting gold ore using a microwave and a home made furnace. The first step is to separate the silicates buy melting the concentrated ore. Then pouring it into a cone mold so that the metals sink to the bottom of the mold then placing the mixed metals in a bone cup and heating it so that the lead will oxidize and soak into the cup leaving the precious metals behind which have a much higher melting point that lead, zinc, and tin. #gold #goldmining #goldmine
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30 май 2017
