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Which other metals were historically mistaken for bismuth?

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Historically, bismuth was not clearly recognized as a distinct metal for a long period. It was frequently confused with lead, antimony, and tin.1

During the Middle Ages, miners often mistakenly believed that bismuth represented a developmental stage in the formation of silver from baser metals. Consequently, they were often discouraged when they encountered veins of bismuth, as they believed they had interrupted the natural process of silver creation. It was not until the middle of the 18th century that bismuth was formally accepted as a specific metal, following the work of chemists such as Johann Heinrich Pott and Claude-François Geoffroy.1