Copper than less-developed countries (30–40 kg per capita). The process of recycling copper is roughly the same as is used to extract copper but requires fewer steps. High-purity scrap copper is melted in a furnace and then reduced and cast into billets and ingots; lower-purity scrap is refined by electroplating in a bath of sulfuric acid. Numerous copper alloys have been formulated, many with important uses. Brass is an alloy of copper and zinc. Bronze usually refers to copper-tin alloys, but can refer to any alloy of copper such as aluminium bronze. Copper is one of the most important constituents of
Sundown Tin and Copper Mine though copper fell dramatically in 1907 as well. However, Kershaw and Dodds intended to erect a crushing works at the site the following year. The mine was worked under tribute in 1909 - 1910. In 1911 -1912 work recommenced, with both copper and tin prices resurging. A road was cut to the site, and a shaft sunk in the bottom of the tin mine, which had previously been mined largely by open-cut. The old smelter was described as still being in good condition in 1913, but mining was clearly slow . In 1914 the mine was taken over by the