AM_Aegirine_29 Formula: Na Fe Si2 O6 Name: Aegirine Unit cell: 9.6549 8.7947 5.2938 90.0 107.394 90.0 , V=428.95 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: ae100/12