AM_Diopside_26 Formula: Si1.988 Al.029 Cr.298 V.285 Mg.388 Fe.011 Mn.001 (Ca.413 Na.587) O6 Name: Diopside Unit cell: 9.6595 8.8263 5.2686 90.0 106.596 90.0 , V=430.48 Space group: C12/C1 (15)

Secco L , Martignago F , Dal Negro A , Reznitskii L Z , Sklyarov E V , American Mineralogist , 87 (2002) p.709-714, Crystal chemistry of Cr-V-rich clinopyroxenes, Sample 2