AM_Diopside_28 Formula: Si1.99 Al.029 Cr.223 V.257 Mg.488 Fe.011 Ti.001 Mn.001 (Ca.509 Na.491) O6 Name: Diopside Unit cell: 9.6774 8.8479 5.2662 90.0 106.446 90.0 , V=432.47 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 6