AM_MgSiO3_13 Formula: Mg Si O3 Name: MgSiO3 Unit cell: 7.026 6.228 4.262 90.0 95.85 90.0 , V=185.53 Space group: P121/M1 (11)

Tschauner O , Kiefer B , Liu H , Sinogeikin S , Somayazulu M , Luo S-N , American Mineralogist , 93 (2008) p.533-539, Possible structural polymorphism in Al-bearing magnesiumsilicate post-perovskite, Sample: 2X1, Note: atom sites modified after communication with author