AM_Diopside_21 Formula: Mg.65 Al.28 Fe.13 Ti.01 Ca.65 Na.26 Si2 O6 Name: Diopside Unit cell: 9.654 8.831 5.255 90.0 106.52 90.0 , V=429.52 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 3H, Di64Jd26, diopside - jadeite join