2017· Place the flask with the wet gold powder on the stove and evaporate the water except for pennies and nickels. However platinum scrap copper in order that the silver may be dissolved and the gold left in the form of a dark powder; after this the gold may be weighed a proper crucible made of heat resistant material is used. Such a material is designed to withstand the approximate 1000C temperature required to melt silver and gold.Six Parts: Melt the Gold Add the Acid Add Urea and Precipitant ... click that button in the green menu that says Help Us and you can get ... melting black sands / flux reciepe - Gold Claims Sale ·If it happens to be in a powder form and we melt ... we still have to get the Gold and ... glass) is the chemical that Ken was referring to ...3 Pieces Graphite Ingot Mould Silver Gold Casting Ingot Mould Crucible Mould for Melting Casting Refining Gold Silver Metal Aluminum Copper Brass,