AM_Olgite Formula: Ba.76 Sr.88 K.04 Na2.12 La.1 Ca.04 Ce.02 Mn.03 P2 O8 Name: Olgite Unit cell: 5.5606 5.5606 7.045 90.0 90.0 120.0 , V=188.65 Space group: P-3M1 (164)

Sokolova E , Hawthorne F C , Khomyakov A P , The Canadian Mineralogist , 43 (2005) p.1521-1526, Refinement of the crystal structure and revision of the, chemical formula of olgite: (Ba,Sr) (Na,Sr,REE)2 Na [PO4]2, Locality: Lovozero alkaline massif, Kola Peninsula, Russia, Sample: I