B2 Ca O4 Zachariasen W Proceedings of the National Academy of Sciences 17 (1931) 617-619 The Crystal Lattice of Calcium Metaborate, Ca B2 O4 _cod_database_code 1010437 _database_code_amcsd 0017360 6.19 11.6 4.28 90 90 90 Pnca atom x y z Ca1 .25 0 .26 B1 .12 .2 .88 O1 .125 .21 .19 O2 .11 .09 .75