AM_Perovskite-type MgSiO3_2 Formula: Mg.975 Al.05 Si.975 O3 Name: Perovskite-type MgSiO3 Unit cell: 4.7783 4.9327 6.9051 90.0 90.0 90.0 , V=162.75 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: Stoichiometric with XAl = 0.05