Roman metallurgy the most important being bronze, an alloy of copper and tin. Alloys are mixtures of different metals created either by smelting or by forging. It is important to note that an ore does not necessarily constitute an alloy; ore is a collection of minerals and alloyed metals. As metallurgical technology developed (hammering, melting, smelting, roasting, cupellation, moulding, smithing, etc.), more metals were intentionally included in the metallurgical repertoire. By the height of the Roman Empire, metals in use included: Gold, Silver, Copper, Tin, Lead, Zinc, Iron, Mercury, Arsenic, Antimony (Healy 1978). As in the Bronze Age, metals were used based
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