High-grade bauxite, being highly refractory, is used as a lining for furnaces. Synthetic corundum is made from it, and it is an ingredient in some quick-setting cements.
Australia has huge reserves of bauxite, and produces over 40% of the world's ore. Brazil, Guinea, and Jamaica are important producers, with lesser production from about 20 other countries.
Related category GEOLOGY AND PLANETARY SCIENCE
Source: Mineral Information Institute
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