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 <= 110 Note: Sample is exactly intermediate between diopside and kosmochlor _database_code_amcsd 0007093 9.658 8.834 5.263 90 106.46 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 .30199 .25 .5 .01139 .0136 .0084 .0095 0 -.0011 0 CaM2 0 .30199 .25 .5 .01139 .0136 .0084 .0095 0 -.0011 0 CrM1 0 .9065 .25 .5 .00584 .0060 .0077 .0056 0 .00097 0 MgM1 0 .9065 .25 .5 .00584 .0060 .0077 .0056 0 .00097 0 Si .28874 .09238 .23022 .00556 .0060 .0087 .0065 .00016 -.00134 -.00023 O1 .11426 .08212 .1390 .0081 .006 .012 .011 .0002 .0011 -.0010 O2 .36006 .25412 .3103 .0096 .014 .011 .008 -.0024 .0025 -.0011 O3 .35172 .01425 .9999 .0082 .007 .007 .008 .0002 .0020 -.0023