AM_Kupletskite_12
Formula: K2 Na1.026 Ca.356 Mn5.926 Mg.238 Fe.401 (Ti1.896 Nb.104) Si8 O30 F H4
Name: Kupletskite
Unit cell: 5.3925 11.9283 11.7256 113.044 94.84 103.064 , V=663.39
Space group: P-1 (2)

Piilonen P C , McDonald A M , LaLonde A E , European Journal of Mineralogy , 13 (2001) p.973-984, Kupletskite polytypes from the Lovozero massif, Kola Peninsula,, Russia: Kupletskite-1A and kupletskite-Ma2b2c, Sample: Kupletskite-1A, Locality: Lovozero massif, Kola Peninsula, Russia