NaAlSiO4 Yamada H, Matsui Y, Ito E Mineralogical Magazine 47 (1983) 177-181 Crystal-chemical characterization of NaAlSiO4 with the CaFe2O4 structure Note: z-coordinate of O4 altered to reproduce bond lengths _database_code_amcsd 0014477 10.1546 8.6642 2.7385 90 90 90 Pbnm atom x y z occ Biso Na .661 .764 .75 .6 AlM1 .890 .577 .25 .5 .5 SiM1 .890 .577 .25 .5 .5 AlM2 .398 .556 .25 .5 .5 SiM2 .398 .556 .25 .5 .5 O1 .365 .697 .75 .6 O2 .018 .612 .75 .6 O3 .201 .461 .25 .6 O4 .430 .438 .75 .6