KNb3O8 Gasperin M Acta Crystallographica B38 (1982) 2024-2026 Structure du Triniobate(V) de Potassium KNb3O8, un Niobate Lamellaire _cod_database_code 1001208 _database_code_amcsd 0009776 8.903 21.16 3.799 90 90 90 Amam atom x y z Nb1 .9403 .3682 0 Nb2 .25 .2416 0 K1 .25 .9845 0 O1 .4080 .1565 0 O2 .0654 .4311 0 O3 .0951 .2954 0 O4 .25 .7134 0 O5 .25 .5851 0