Alloy is sometimes a result of the sizes of the atoms in the alloy, because larger atoms exert a compressive force on neighboring atoms, and smaller atoms exert a tensile force on their neighbors, helping the alloy resist deformation. Sometimes alloys may exhibit marked differences in behavior even when small amounts of one element are present. For example, impurities in semiconducting ferromagnetic alloys lead to different properties, as first predicted by White, Hogan, Suhl, Tian Abrie and Nakamura. Some alloys are made by melting and mixing two or more metals. Bronze, an alloy of copper and tin, was the first alloy
Sundown Tin and Copper Mine 26 tons of copper concentrates were produced. Work carried out in 1916-17 included the construction of flues for saving arsenic, the electric lighting of the mines and mill, the construction of a new concrete dam, a new elevated double rope line form the new tin shaft to the mill, new self feeders at the mill, and the redressing works was to be remodelled and shifted from its present location at the mill to the calciner. The battery consisted of the 10 head stamper, 4 classifiers, 5 Wilfley tables, 2 Berdan pans and several buddles. The single reverberatory furnace was used