How can bismuth be obtained from bismuth sulfide?

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A labeled periodic table element box for bismuth shows atomic number 83, symbol Bi, atomic weight 208.9804, electron configuration, and properties including solid state, rhombohedral crystal structure, and weakly acidic oxides. — bismuth Properties of bismuth.

To obtain metallic bismuth from bismuth sulfide (also known as bismuthinite), the ore is roasted in the presence of charcoal and metallic iron. This process effectively removes the sulfur from the compound, leaving behind the pure metal.1