AM_Phlogopite_54 Formula: K (Mg1.981 Fe1.019) Si3.973 O12 H1.329 Name: Phlogopite Unit cell: 5.3367 9.2431 10.1806 90.0 100.1033 90.0 , V=494.40 Space group: C12/M1 (12)

Matarrese S , Schingaro E , Scordari F , Stoppa F , Rosatelli G , Pedrazzi G , Ottolini L , American Mineralogist , 93 (2008) p.426-437, Crystal chemistry of phlogopite from Vulture-S. Michele Subsynthem volcanic, rocks (Mt. Vulture, Italy) and volcanological implications, Locality: Masseria Saraceno pyroclastic flow, Vulture-San Michele Subsynthem,, Mt. Vulture, Italy