NaVSi2O6 Ullrich A, Miletich R, Nestola F, Weikusat C, Ohashi H American Mineralogist 94 (2009) 557-564 Lattice compression and structural behavior of NaVSi2O6 clinopyroxene to 11 GPa Note: P = 9.39 GPa _database_code_amcsd 0004901 9.469 8.521 5.169 90 105.99 90 C2/c atom x y z Uiso Na 0 .3081 .25 .0134 V 0 .9078 .25 .0062 Si .2921 .0934 .2399 .0062 O1 .1150 .0845 .1457 .0055 O2 .3601 .2612 .3220 .0092 O3 .3550 .0188 .0021 .0083