Diopside
Bindi L, Downs R T, Harlow G E, Safonov O G, Litvin Y A, Perchuk L L, Uchida H, Menchetti S
American Mineralogist 91 (2006) 802-808
Compressibility of synthetic potassium-rich clinopyroxene:
In situ high-pressure single-crystal X-ray study
Sample: 939-1, in air
_database_code_amcsd 0004146
9.6912 8.8986 5.2531 90 105.990 90 C2/c
atom      x      y      z occ Biso B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Ca2       0 .30245    .25 .88 .896 .00315 .00222 .00716       0 -.00010       0
K2        0 .30245    .25 .12 .896 .00315 .00222 .00716       0 -.00010       0
Mg1       0 .90703    .25 .83  .51 .00143 .00169 .00454       0  .00042       0
Al1       0 .90703    .25 .17  .51 .00143 .00169 .00454       0  .00042       0
Si   .28620 .09297 .22578 .99 .427 .00115 .00151 .00400  .00002  .00061 -.00017
Al   .28620 .09297 .22578 .01 .427 .00115 .00151 .00400  .00002  .00061 -.00017
O1   .11410 .08445 .13811      .83 .00128 .00394 .00797  .00025  .00105 -.00028
O2   .35996 .25132 .31167      .94 .00364 .00202 .00935 -.00071  .00189 -.00077
O3   .35013 .01660 .99295      .69 .00166 .00281 .00628 -.00006  .00109 -.00104