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, P = 2.45 GPa
_database_code_amcsd 0004149
9.6313 8.8327 5.2212 90 105.746 90 C2/c
atom     x     y     z occ Biso
Ca2      0 .3036   .25 .88 1.00
K2       0 .3036   .25 .12 1.00
Mg1      0 .9077   .25 .83  .62
Al1      0 .9077   .25 .17  .62
Si   .2858 .0935 .2248 .99  .59
Al   .2858 .0935 .2248 .01  .59
O1   .1142 .0849 .1386     1.03
O2   .3599 .2533 .3131     1.05
O3   .3509 .0178 .9910      .83