AM_Kosmochlor
Formula: Si2 Cr Na O6
Name: Kosmochlor
Unit cell: 9.579 8.722 5.267 90.0 107.37 90.0 , V=419.98
Space group: C12/C1 (15)

Cameron M , Sueno S , Prewitt C T , Papike J J , American Mineralogist , 58 (1973) p.594-618, High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite,, spodumene, and ureyite, T = 24 C, pyroxene