AM_Phlogopite_15 Formula: Si3.12 Fe1.09 Mg2.7 (K.99 Na.01) O11.86 F.14 H1.78 Name: Phlogopite Unit cell: 5.357 9.27 10.319 90.0 99.96 90.0 , V=504.71 Space group: C12/M1 (12)

Brigatti M F , Medici L , Saccani E , Vaccaro C , American Mineralogist , 81 (1996) p.913-927, Crystal chemistry and petrologic significance of Fe3+-rich phlogopite from, the Tapira carbonatite complex, Brazil, Sample: Tas22-1a