AM_Hedenbergite_31 Formula: (Na.24 Ca.76) (Al.24 Fe.76) Si2 O6 Name: Hedenbergite Unit cell: 9.734 8.9103 5.2682 90.0 105.904 90.0 , V=439.44 Space group: C12/C1 (15)

Nestola F , Tribaudino M , Ballaran T B , Liebske C , Bruno M , American Mineralogist , 92 (2007) p.1492-1501, The crystal structures of pyroxenes along the jadeite - hedenbergite and, jadeite - aegirine joins, Locality: synthetic, Sample: Jd24Hde76