AM_Diopside_22 Formula: Mg.66 Al.27 Fe.24 Ti.01 Mn.01 Ca.52 Na.29 Si2 O6 Name: Diopside Unit cell: 9.644 8.82 5.256 90.0 107.04 90.0 , V=427.45 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 39, Di52Jd27, diopside - jadeite join