AM_Phlogopite_40 Formula: K.89 Na.07 (Mg1.5 Fe1.11 Ti.39) (Al1.12 Si2.88) O12 Name: Phlogopite Unit cell: 5.3368 9.2377 20.086 90.0 95.128 90.0 , V=986.27 Space group: C12/C1 (15)

Laurora A , Brigatti M F , Mottana A , Malferrari D , Caprilli E , American Mineralogist , 92 (2007) p.468-480, Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic, rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy), Locality: Mt. Sassetto, Tolfa district, Latium, Italy, Sample: MS4