Solved UPSC CDS/OTA Question
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Which mineral is the main source of aluminium?
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Bauxite is the primary ore of aluminium, containing high concentrations of aluminium hydroxide minerals such as gibbsite, boehmite, and diaspore. It is formed through the weathering of aluminium-rich rocks in tropical and subtropical climates. Bauxite deposits are found worldwide, with major producers including Australia, Guinea, Brazil, and Jamaica. The aluminium extraction process involves refining bauxite into alumina (aluminium oxide) through the Bayer process, followed by electrolytic reduction to produce metallic aluminium.