id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-4779 Roman metallurgy - Wikipedia .html text/html 4487 558 64 This included Italy and its islands, Spain, Macedonia, Africa, Asia Minor, Syria and Greece; by the end of the Emperor Trajan's reign, the Roman Empire had grown further to encompass parts of Britain, Egypt, all of modern Germany west of the Rhine, Dacia, Noricum, Judea, Armenia, Illyria, and Thrace (Shepard 1993). By the height of the Roman Empire, metals in use included: silver, zinc, iron, mercury, arsenic, antimony, lead, gold, copper, tin (Healy 1978). From its acquisition during the Punic Wars to the Fall of Rome, Iberia continued to produce a significant amount of Roman metals (Healy 1978, Shepard 1993). The most common fuel by far for smelting and forging operations, as well as heating purposes, was wood and particularly charcoal, which is nearly twice as efficient.[2] In addition, coal was mined in some regions to a fairly large extent: Almost all major coalfields in Roman Britain were exploited by the late 2nd century AD, and a lively trade along the English North Sea coast developed, which extended to the continental Rhineland, where bituminous coal was already used for the smelting of iron ore.[3] The annual iron production at Populonia alone accounted for an estimated 2,000[4] to 10,000 tons.[5] ./cache/en-wikipedia-org-4779.html ./txt/en-wikipedia-org-4779.txt