Aluminium molybdate is the chemical compound Al2(MoO4)3. The room temperature crystal structure was refined using time-of-flight powder neutron diffraction data. It is monoclinic, with a = 15.3803(9)Å, b = 9.0443(1) Å, c = 17.888(1) Å, and β = 125.382(3)°, space group P21/a. It is isostructural with Fe2(MoO4)3 and Cr2(MoO4)3. Aluminium molybdate is the chemical compound Al2(MoO4)3. The room temperature crystal structure was refined using time-of-flight powder neutron diffraction data. It is monoclinic, with a = 15.3803(9)Å, b = 9.0443(1) Å, c = 17.888(1) Å, and β = 125.382(3)°, space group P21/a. It is isostructural with Fe2(MoO4)3 and Cr2(MoO4)3.