AM_Surinamite Formula: Mg3.884 Fe1.518 Al8.48 Be1.89 Si6.11 O32 Name: Surinamite Unit cell: 9.916 11.384 9.631 90.0 109.3 90.0 , V=1026.08 Space group: P12/N1 (13)

Moore P B , Araki T , American Mineralogist , 68 (1983) p.804-810, Surinamite, ca. Mg3Al4Si3BeO16: its crystal structure and relation to, sapphirine, ca. Mg2.8Al7.2Si1.2O16