AM_Natalyite_1 Formula: Si2 Al.046 Cr.238 V.257 Mg.461 (Ca.463 Na.537) O6 Name: Natalyite Unit cell: 9.6582 8.8273 5.2665 90.0 106.577 90.0 , V=430.34 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 4