AM_Muscovite-3T_1 Formula: K.92 Na.01 Al1.87 Mg.6 Ti.02 Si3.54 O12 H2 Name: Muscovite-3T Unit cell: 5.212 5.212 29.804 90.0 90.0 120.0 , V=701.15 Space group: P3112 (151)

Amisano-Canesi A , Chiari G , Ferraris G , Ivaldi G , Soboleva S V , European Journal of Mineralogy , 6 (1994) p.489-496, Muscovite- and phengite-3T: crystal structure and conditions of formation, Locality: Dora-Maira