AM_Diopside_86 Formula: Mg.89 Fe.072 Al.121 Ti.002 Cr.023 Ca.828 Na.102 Mn.001 Si1.962 O6 Name: Diopside Unit cell: 9.702 8.878 5.252 90.0 106.2 90.0 , V=434.42 Space group: C12/C1 (15)

Comodi P , Princivalle F , Tirone M , Zanazzi P F , European Journal of Mineralogy , 7 (1995) p.141-149, Comparative compressibility of clinopyroxenes from mantle nodules, Sample: 3211 at room conditions