K2 Na3 P3 Si Eisenmann B, Klein J, Somer M Zeitschrift fur Kristallographie 197 (1991) 275-276 Crystal structure of trisodium dipotassium triphosphidosilicate _cod_database_code 1008466 _database_code_amcsd 0016370 14.580 4.750 13.020 90. 90. 90. Pnma atom x y z Na1 .55945 .25 .4286 Na2 .08416 .25 .81602 Na3 .25697 .25 .23518 K1 .29839 .25 .94014 K2 .51317 .25 .13409 Si1 .29584 .25 .58433 P1 .14749 .25 .60077 P2 .35939 .25 .43257 P3 .38483 .25 .7180