AM_Polylithionite_12
Formula: K.874 Rb.073 Na.029 Cs.02 Ca.002 Li1.758 Al1.656 Fe.018 Mn.014 Mg.006 Ti.002 Si3.54 O10.278 (F1.722 H.278)
Name: Polylithionite
Unit cell: 9.029 5.203 20.201 90.0 99.35 90.0 , V=936.39
Space group: C12/C1 (15)

Brigatti M F , Caprilli E , Malferrari D , Medici L , Poppi L , European Journal of Mineralogy , 17 (2005) p.475-481, Crystal structure and chemistry of trilithionite-2M2 and polylithionite-2M2, Note: sample SBT, Locality: Varutrask, Vasterbotten, Sweden