AM_Polylithionite_10 Formula: Si3.44 Al1.56 Li1.44 Fe.38 Mn.17 Mg.01 (K.95 Na.05) O10.12 (F1.88 H.12) Name: Polylithionite Unit cell: 5.264 9.086 10.099 90.0 100.719 90.0 , V=474.59 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: Hirukawa mine, Ena county, Gifu prefecture, Chibu region, Japan, Sample: Hirukawa