AM_Lamprophyllite_1 Formula: Ti3 Si4 Na3 Sr2 (O18 H2) Name: Lamprophyllite Unit cell: 19.128 7.0799 5.3824 90.0 90.0 90.0 , V=728.91 Space group: PNMN (58)

Krivovichev S V , Armbruster T , Yakovenchuk V N , Pakhomovsky Y A , Men shikov Y P , European Journal of Mineralogy , 15 (2003) p.711-718, Crystal structures of lamprophyllite-2M and lamprophyllite-2O, from the Lovozero alkaline massif, Kola peninsula, Russia, Note: displacement factors have been altered by Krivovichev, November 2003, Locality: Lovozero alkaline massif, Kola peninsula, Russia