Ni2SiO4 Yamanaka T Physics and Chemistry of Minerals 13 (1986) 227-232 Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of temperature and heating duration Sample: Duration time: 26-29 h _database_code_amcsd 0007412 8.0868 8.0868 8.0868 90 90 90 Fd3m atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ni .625 .625 .625 .00447 .00447 .00447 -.00039 -.00039 -.00039 Si 0 0 0 .00473 .00473 .00473 0 0 0 O .3678 .3678 .3678 .00539 .00539 .00539 -.00054 -.00054 -.00054