AM_Hedenbergite_5 Formula: Si2 Fe Ca O6 Name: Hedenbergite Unit cell: 9.916 9.179 5.276 90.0 105.28 90.0 , V=463.24 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 = 1000 C, pyroxene