How the extraction of metals were done in ancient times?
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The ores used in ancient smelting processes were rarely pure metal compounds. Impurities were removed from the ore through the process of slagging. Slag is the material in which the impurities from ores (known as gangue), as well as furnace lining and charcoal ash, collect.
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Answer:
The ores used in ancient smelting processes were rarely pure metal compounds. Impurities were removed from the ore through the process of slagging. Slag is the material in which the impurities from ores (known as gangue), as well as furnace lining and charcoal ash, collect.
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