Diopside Tribaudino M, Nestola F, Ohashi H European Journal of Mineralogy 17 (2005) 297-304 High temperature single crystal investigation in a clinopyroxene of composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6 Sample: T = 25 C, 2-theta <= 50 Note: Sample is exactly intermediate between diopside and kosmochlor Note: a cell edge corrected _database_code_amcsd 0007094 9.656 8.833 5.262 90 106.5281 90 C2/c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) NaM2 0 .3015 .25 .5 .0137 .0173 .011 .011 0 .0007 0 CaM2 0 .3015 .25 .5 .0137 .0173 .011 .011 0 .0007 0 CrM1 0 .9065 .25 .5 .0065 .0060 .0077 .0056 0 .0013 0 MgM1 0 .9065 .25 .5 .0065 .0060 .0077 .0056 0 .0013 0 Si .2889 .0924 .2301 .0070 .0060 .0087 .0065 -.0002 .0023 -.0007 O1 .1141 .0818 .1383 .0093 .006 .012 .011 .001 .003 -.000 O2 .3602 .2542 .3102 .0108 .014 .011 .008 -.003 .004 -.001 O3 .3520 .0138 .0006 .0082 .007 .007 .008 .000 .003 -.002