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 have been mined after 1923. There is no reference to copper after this date either. The tin mine area consists of the open cut, with a grided shaft in its floor, and a collapsed adit at the base of its work face. Above the open cut is the main shaft, located on a bench cut into the hillside, with a mullock tip, tripod steel poppet head and older timber shaft- head staging, over a three-compartment shaft. The concrete pad supporting one of the poppet legs is inscribed with the names "T Fredrick, S. Lynn, F. Meehan, GRM Kane". Adjacent to