AM_Polylithionite_11 Formula: Si3.32 Al1.68 Li1.32 Fe.36 Mn.16 Mg.16 K.94 Na.04 Ca.01 O10.1 (F1.9 H.1) Name: Polylithionite Unit cell: 5.297 9.133 10.168 90.0 100.78 90.0 , V=483.22 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: Mokrusha mine, Yuzhakova village, Murzinka region, Russia, Sample: Mokrusha