AM_Masutomilite Formula: Si3.12 Al1.79 Li1.06 Fe.46 Mn.52 Mg.03 Ti.02 K.92 Na.05 Rb.02 O10.12 (F1.88 H.12) Name: Masutomilite Unit cell: 5.2984 9.1461 10.0966 90.0 100.818 90.0 , V=480.58 Space group: C121 (5)

Brigatti M F , Mottana A , Malferrari D , Cibin G , American Mineralogist , 92 (2007) p.1395-1400, Crystal structure and chemical composition of Li-, Fe-, and Mn-rich micas, Locality: Sawtooth Mountains, Boise county, Idaho, USA, Sample: Boise