B3 Na3 O6 Ssu-Mien Fang Zeitschrift fur Kristallographie 99 (1938) 1-8 The crystal structure of sodium metaborate Na3 B3 O6 _cod_database_code 1010015 _database_code_amcsd 0016948 7.22 7.22 7.22 111.48 111.48 111.48 R-3c atom x y z Na1 .696 -.196 .25 B1 .362 .138 .25 O1 .479 .021 .25 O2 .138 .362 .25