The structure of Sb2WO6 [Mr = 523.4, triclinic, F1, a = 11.132 (1), b = 9.896 (4), c = 18.482 (7)/~, a = 90.20 (4), /3 -96.87 (8), q, = 90.21 (5) °, Dx = 6.88 g cm -3, Z = 16, Mo Ka, A = 0.7107/~,, /z = 338.5cm -I, F(000)= 3536] has been refined as an enlarged 2a x 2b x 2c F-centred superstructure of the previously reported structure [Castro, Millan, Enjalbert, Snoeck & Galy (1994). Mat. Res. Bull. 29,[871][872][873][874][875][876][877][878][879]