AM_Diopside_19 Formula: Mg.83 Al.19 Fe.08 Ti.01 Ca.71 Na.2 Si1.98 O6 Name: Diopside Unit cell: 9.678 8.853 5.255 90.0 106.52 90.0 , V=431.66 Space group: C12/C1 (15)

Oberti R , Caporuscio F A , American Mineralogist , 76 (1991) p.1141-1152, Crystal chemistry of clinopyroxenes from mantle eclogites: A study of the key, role of the M2 site population by means of crystal-structure refinement, sample SBB 37, Di71Jd20, diopside - jadeite join