AM_Sobolevite Formula: Na13.62 Ca1.63 Sr.03 Mn1.02 Ti2.42 Nb.51 Fe.1 Zr.09 Mg.41 P4 Si4 O33 F3 Name: Sobolevite Unit cell: 7.0755 5.4106 40.623 90.0 93.156 90.0 , V=1552.80 Space group: P1C1 (7)

Sokolova E , Hawthorne F C , Khomyakov A P , The Canadian Mineralogist , 43 (2005) p.1527-1544, Polyphite and sobolevite: Revision of their crystal structures, Locality: Khibina-Lovozero alkaline complex, Kola peninsula, Russia