AM_Phlogopite_27 Formula: (Al1.04 Si2.96) (Mg2.22 Fe.78) K O12 H2 Name: Phlogopite Unit cell: 5.3409 9.2536 10.3087 90.0 99.962 90.0 , V=501.80 Space group: C12/M1 (12)

Redhammer G J , Roth G , American Mineralogist , 87 (2002) p.1464-1476, Single-crystal structure refinements and crystal chemistry of, synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where, M = Ni, Mg, Co, Fe, Al, Sample: Mga1.2#1