Formula: Ca.645 Na.094 Mg.957 Fe.128 Mn.002 Al.255 Ti.008 Cr.044 Si1.883 O6
Name: Diopside
Unit cell: 9.699 8.861 5.267 90.0 106.87 90.0 , V=433.18
Space group: C12/C1 (15)

Salviulo G , Princivalle F , Demarchi G , Fabro C , Physics and Chemistry of Minerals , 19 (1992) p.213-219, Effects of Ca-Mg substitution in C2/c pyroxene structure on, natural clinopyroxenes from spinel peridotite nodules (Pico Cabugi, Brazil), Sample: PC135, Locality: sample from Pico Cabugi, Brazil, Note: z-coordinate of O2 altered to match reported bond lengths