B6 Na0.77 Th0.23 Blum P, Bertaut F Acta Crystallographica 7 (1954) 81-86 Contribution a l'Etude des Borures a Teneur Elevee en Bore _cod_database_code 1008114 _database_code_amcsd 0016056 4.151 4.151 4.151 90 90 90 Pm3m atom x y z occ Na1 .5 .5 .5 .77 Th1 .5 .5 .5 .23 B1 .294 0 0