AM_Phlogopite_39 Formula: K.87 Na.06 (Mg1.5 Fe1.11 Ti.39) (Al1.08 Si2.92) O12 Name: Phlogopite Unit cell: 5.3369 9.2423 10.1618 90.0 100.222 90.0 , V=493.28 Space group: C12/M1 (12)

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: MS2, Note: 1M polytype