AM_Hedenbergite_35 Formula: Ca.637 Na.139 Fe1.138 Mg.722 Mn.004 Al.413 Ti.035 Cr.004 Si1.778 O6 Name: Hedenbergite Unit cell: 9.696 8.839 5.276 90.0 106.64 90.0 , V=433.23 Space group: C12/C1 (15)

Dal Negro A , Manoli S , Secco L , Piccirillo E M , European Journal of Mineralogy , 1 (1989) p.105-121, Megacrystic clinopyroxenes from Victoria (Australia):, Crystal chemical comparisons of pyroxenes from high and low pressure regimes, Sample: Fr-5, Locality: Victoria, Australia