AM_Phengite_8 Formula: K.475 Na.025 Al2.28 Mg.2 Fe.28 Si3.24 O11.96 F.04 H1.96 Name: Phengite Unit cell: 5.2276 9.0701 20.083 90.0 95.726 90.0 , V=947.48 Space group: C12/C1 (15)

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