Refining and Smelting | Diamond Jewelry Commodity Chain
Once the process is complete, the acid is processed and the gold is removed from the acid and melted down to the next stage, Smelting. Smelting. The pure gold is then heated back up to moltant levels and poured into gold bars called ingots or into smaller quantities called bullion. An example of ingots are shown in Figure (Gold Bars, 2015)