AM_Muscovite Formula: K Si3 Al3 O12 H2 Name: Muscovite Unit cell: 5.1988 9.0266 20.1058 90.0 95.782 90.0 , V=938.71 Space group: C12/C1 (15)

Richardson S M , Richardson J W , American Mineralogist , 67 (1982) p.69-75, Crystal structure of a pink muscovite from Archer s Post, Kenya: Implications, for reverse pleochroism in dioctahedral micas