AM_Nechelyustovite Formula: Ti4.14 Mn1.44 Na4.2 Ca.4 Nb1.43 Al.04 Fe.06 Si8 Ba1.28 Sr.5 K.3 O42 H20 Name: Nechelyustovite Unit cell: 5.447 7.157 47.259 97.759 92.136 89.978 , V=1824.20 Space group: P-1 (2)

Camara F , Sokolova E , Mineralogical Magazine , 73 (2009) p.753-775, From structure topology to chemical composition. X. Titanium silicates: the crystal, structure and crystal chemistry of nechelyustovite, a group III Ti-disilicate mineral, Locality: hydrothermally altered pegmatite, Kirovskii mine, Mt Kukisvumchorr,, Khibina alkaline massif, Kola peninsula, Russia