AM_Natalyite Formula: Si1.986 Al.04 Cr.165 V.403 Mg.402 Fe.003 Ti.001 (Ca.418 Na.582) O6 Name: Natalyite Unit cell: 9.6631 8.8263 5.2709 90.0 106.601 90.0 , V=430.81 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 3