AM_Diopside_23 Formula: Mg.65 Fe.15 Ti.01 Al.32 Ca.55 Na.3 Si2 O6 Name: Diopside Unit cell: 9.628 8.808 5.254 90.0 106.88 90.0 , V=426.36 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 25, Di55Jd30, diopside - jadeite join