The correct answer is Option 4: Iron Ore
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Ferrous Minerals: These contain iron. Iron Ore is the quintessential ferrous mineral, forming the backbone of the metallurgical industry. Other examples include manganese and chromite.
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Non-Ferrous Minerals: These do not contain iron. Bauxite (the ore of aluminum), Copper, and Gold are all classified as non-ferrous minerals because they lack iron content in their chemical composition.
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