AM_Lemmleinite-Ba_2 Formula: Ti4 Si8 O36.92 Ba.76 Fe.46 K1.78 Na2.22 H11.6 Name: Lemmleinite-Ba Unit cell: 14.237 13.768 7.767 90.0 116.83 90.0 , V=1358.56 Space group: C12/M1 (12)

Armbruster T , Krivovichev S V , Weber T , Gnos E , Organova N N , Yakovenchuk V N , American Mineralogist , 89 (2004) p.1655-1666, Origin of diffuse superstructure reflections in labuntsovite-group minerals, Sample B at T = 22 deg C, Locality: Khibiny alkaline complex, Kola peninsula, Russia