Diopside
Salviulo G, Princivalle F, Demarchi G, Fabro C
Physics and Chemistry of Minerals 19 (1992) 213-219
Effects of Ca-Mg substitution in C2/c pyroxene structure on
natural clinopyroxenes from spinel peridotite nodules (Pico Cabugi, Brazil)
Sample: PC135
Locality: sample from Pico Cabugi, Brazil
Note: z-coordinate of O2 altered to match reported bond lengths
_database_code_amcsd 0007727
9.699 8.861 5.267 90 106.87 90 C2/c
atom      x     y     z   occ Biso
CaM2      0 .2950   .25  .645 1.43
NaM2      0 .2950   .25  .094 1.43
MgM2      0 .2950   .25  .192 1.43
FeM2      0 .2950   .25  .067 1.43
MnM2      0 .2950   .25  .002 1.43
FeM2'     0 .2207   .25  .016 1.51
MgM1      0 .9065   .25  .765  .87
FeM1      0 .9065   .25  .045  .87
AlM1      0 .9065   .25  .138  .87
TiM1      0 .9065   .25  .008  .87
CrM1      0 .9065   .25  .044  .87
SiT   .2894 .0925 .2353 .9415  .95
AlT   .2894 .0925 .2353 .0585  .95
O1    .1155 .0867 .1408       1.14
O2    .3648 .2512 .3263       1.49
O3    .3520 .0182 .0010       1.40