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: 8-11 h _database_code_amcsd 0007411 8.0876 8.0876 8.0876 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 .00431 .00431 .00431 -.00039 -.00039 -.00039 Si 0 0 0 .00463 .00463 .00463 0 0 0 O .3680 .3680 .3680 .00532 .00532 .00532 -.00043 -.00043 -.00043