Vauxite is a phosphate mineral with the chemical formula Fe2+Al2(PO4)2(OH)2·6(H2O). It belongs to the laueite – paravauxite group, paravauxite subgroup,[2][5] although Mindat puts it as a member of the vantasselite Al4(PO4)3(OH)3·9H2O group.[3] There is no similarity in structure between vauxite and paravauxite Fe2+Al2(PO4)2(OH)2·8H2O or metavauxite Fe3+Al2(PO4)2(OH)2·8H2O, even though they are closely similar chemically, and all minerals occur together as secondary minerals.[5] Vauxite was named in 1922 for George Vaux Junior (1863–1927), an American attorney and mineral collector.