how is corundum different from bauxite
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Corundum. Corundum is a crystalline form of aluminum oxide (Al2O3) with traces of iron, titanium and chromium. ... Geology: Corundum is a metamorphic variant of bauxite and therefore appears most commonly as a metamorphosed bauxite deposit, or as altered aluminous shale. It is unusually dense and nearly as hard as diamond.
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