AM_Muscovite-2M1_9 Formula: K.93 Na.05 Si2.88 Al2.93 Ti.04 Fe.06 Mg.16 H.28 O11.94 F.06 Name: Muscovite-2M1 Unit cell: 5.196 8.997 20.034 90.0 95.8 90.0 , V=931.76 Space group: C12/C1 (15)

Brigatti M F , Frigieri P , Poppi L , American Mineralogist , 83 (1998) p.775-785, Crystal chemistry of Mg-, Fe-bearing muscovites-2M1, Sample C6Bb from peraluminous granites at Northern Victoria Land, Antarctica