AM_Phengite_12 Formula: K.475 Na.025 Al2.28 Mg.2 Fe.28 Si3.24 O11.96 F.04 H1.96 Name: Phengite Unit cell: 5.236 9.0862 20.169 90.0 95.707 90.0 , V=954.79 Space group: C12/C1 (15)

Mookherjee M , Redfern S A T , Zhang M , European Journal of Mineralogy , 13 (2001) p.545-555