AM_Phengite_4 Formula: K Al.998 Mg.5 Fe.026 Si3.808 O11.2 F.8 H1.2 Name: Phengite Unit cell: 5.211 5.211 29.689 90.0 90.0 120.0 , V=698.18 Space group: P3112 (151)

Smyth J R , Jacobsen S D , Swope R J , Angel R J , Arlt T , Domanik K , Holloway J R , European Journal of Mineralogy , 12 (2000) p.955-963