H4 O7 Sb2 Riviere M, Fourquet J, Grins J, Nygren M Materials Research Bulletin 23 (1988) 965-975 The cubic Pyrochlores H2x Sb2x W2-2x O6 n(H2 O); structural, thermal and electrical properties _cod_database_code 1000240 _database_code_amcsd 0014332 10.365 10.365 10.365 90 90 90 *Fd3m .125 .125 .125 atom x y z occ O1 .3198 .125 .125 Sb1 0 0 0 O2 .4278 .4278 .4278 .25