AM_Phlogopite_98 Formula: Ba.023 K.976 Al1.364 Ti.381 Cr.003 Fe1.287 Mg1.08 Mn.009 Si2.84 O12 Name: Phlogopite Unit cell: 5.334 9.24 20.064 90.0 95.17 90.0 , V=984.85 Space group: C12/C1 (15)

Brigatti M F , Caprilli E , Funiciello R , Giordano G , Mottana A , Poppi L , European Journal of Mineralogy , 17 (2005) p.611-621, Crystal chemisty of ferroan phlogopites from the Albano maar lake, (Colli Albani volcano, central Italy), Locality: Colli Albani volcano, central Italy, Sample: 8A