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 = 3.47 GPa _database_code_amcsd 0004899 9.566 8.659 5.252 90 106.82 90 C2/c atom x y z Uiso Na 0 .3049 .25 .0151 V 0 .9059 .25 .0072 Si .2921 .0918 .2397 .0076 O1 .1143 .0823 .1451 .0076 O2 .3605 .2590 .3123 .0110 O3 .3528 .0133 .0091 .0101