AM_Hercynite_32 Formula: Fe.898 Al1.93 Mg.15 Ti.006 Mn.006 O4 Name: Hercynite Unit cell: 8.1504 8.1504 8.1504 90.0 90.0 90.0 , V=541.42 Space group: FD3M (227)

Lavina B , Cesare B , Alvarez-Valero A M , Uchida H , Downs R T , Koneva A , Dera P , American Mineralogist , 94 (2009) p.657-665, Closure temperatures of intracrystalline ordering in anatectic and metamorphic, hercynite, Fe2+Al2O4, Note: Sample HO15, Locality: El Hoyazo, lavas of the Neogene Volcanic Province of SE Spain