AM_Normandite Formula: (Ti.612 Zr.388) Mn (Ca.83 Na1.17) Si2 O8 F Name: Normandite Unit cell: 10.798 9.835 7.09 90.0 108.08 90.0 , V=715.77 Space group: P121/A1 (14)

Perchiazzi N , McDonald A M , Gault R A , Johnsen O , Merlino S , The Canadian Mineralogist , 38 (2000) p.641-648, The crystal structure of normandite and its crystal-chemical, relationships with lavenite, Locality: Amdrup Fjord