Ni2SiO4 Finger L W, Hazen R M, Yagi T American Mineralogist 64 (1979) 1002-1009 Crystal structures and electron densities of nickel and iron silicate spinels at elevated temperature or pressure P = 38.2 kbar, T = 23 C _database_code_amcsd 0000747 8.0014 8.0014 8.0014 90 90 90 *Fd3m .125 .125 .125 atom x y z Biso Ni .5 .5 .5 0.51 Si .125 .125 .125 0.53 O .2450 .2450 .2450 0.78