AM_Akermanite_1 Formula: Mg Ca2 Si2 O7 Name: Akermanite Unit cell: 7.57 7.57 4.781 90.0 90.0 90.0 , V=273.97 Space group: P-421M (113)

Merlini M , Gemmi M , Hanfland M , Crichton W , American Mineralogist , 94 (2009) p.704-709, High-pressure behavior of akermanite and gehlenite and phase stability, of the normal structures in melelites, Note: P = 15 GPa, Locality: synthetic