AM_Phlogopite_31 Formula: K.91 Ba.03 Na.02 (Si2.72 Al1.28) (Mg2.18 Fe.82) O11.82 F.18 H1.72 Name: Phlogopite Unit cell: 5.318 9.21 10.1 90.0 100.12 90.0 , V=486.99 Space group: C12/M1 (12)

Comodi P , Fumagalli P , Montagnoli M , Zanazzi P F , American Mineralogist , 89 (2004) p.647-653, A single-crystal study on the pressure behavior of phlogopite, and petrological implications, P = 1.2 GPa