Table 2

Mineralogical compositions of lateritic and karst bauxites [31].

Constituent Lateritic bauxite Karst bauxite
Al2O3 Gibbsite, Boehmite Boehmite, Diaspore
SiO2 Kaolinite, Quartz Kaolinite, Quartz, Chamosite, Illite
Fe2O3 Goethite, Hematite Hematite, Goethite, Maghemite, Magnetite
TiO2 Anatase, Rutile Anatase, Rutile, Ilmenite
CaO Calcite, Apatite, Crandallite Calcite, Apatite, Crandallite

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