AM_Aegirine_26 Formula: (Na.6 Ca.4) Fe Si2 O6 Name: Aegirine Unit cell: 9.7189 8.8818 5.2835 90.0 106.598 90.0 , V=437.08 Space group: C12/C1 (15)

Redhammer G J , Amthauer G , Lottermoser W , Treutmann W , European Journal of Mineralogy , 12 (2000) p.105-120, Synthesis and structural properties of clinopyroxenes of the, hedenbergite CaFeSi2O6 - aegirine NaFeSi2O6 solid-solution series, Sample: ae60/1