Diopside
Raudsepp M, Hawthorne F C, Turnock A C
American Mineralogist 75 (1990) 1274-1281
Crystal chemistry of synthetic pyroxenes on the join CaNiSi2O6-CaMgSi2O6
(diopside): A Rietveld refinement study
sample Ni80, CaNi.74Mg.26Si2O6
_database_code_amcsd 0001334
9.7372 8.8986 5.2313 90 105.826 90 C2/c
atom     x     y     z occ Biso
Ni1      0 .9095   .25 .74 0.37
Mg1      0 .9095   .25 .26 0.37
Ca2      0 .2985   .25     .635
Si   .2867 .0938 .2389     .349
O1   .1153 .0860 .1453     0.51
O2   .3590 .2532 .3202     0.65
O3   .3505 .0184 .9901     0.56