AM_Perovskite-type MgSiO3 Formula: Mg.99 Al.05 Si.96 O2.985 Name: Perovskite-type MgSiO3 Unit cell: 4.7785 4.9326 6.9059 90.0 90.0 90.0 , V=162.78 Space group: PBNM (62)

Kojitani H , Katsura T , Akaogi M , Physics and Chemistry of Minerals , 34 (2007) p.257-267, Aluminum substitution mechanisms in perovskite-type MgSiO3: an investigation by Rietveld analysis, Sample: Nonstoichiometric with XAl = 0.05