I provide small batch smelting for custom processing of the gold miners natural gold.
Gold as it comes from the stream or concentrated free milling gold from hard rock contains oxidized forms of Silver, Copper, Iron, and some Rare Earth minerals. Along with remnant Quartz, these need to be removed from the gold to make it nearer to pure gold. Using a small tornado furnace, soda ash, and borax glass, the gold is heated to melt to consolidate the silica quartz up and into a glass cap. The glass cap also absorbs the oxides of the other metals, contaminates, and prevents oxidation of the remaining gold, silver, and copper.