AM_Phase A Formula: Mg6.217 Fe.117 Si2 O14 Name: Phase A Unit cell: 7.8678 7.8678 9.5771 90.0 90.0 120.0 , V=513.42 Space group: P63 (173)

Holl C M , Smyth J R , Manghnani M H , Amulele G M , Sekar M , Frost D J , Prakapenka V B , Shen G , Physics and Chemistry of Minerals , 33 (2006) p.192-199, Crystal structure and compression of an iron-bearing Phase A to 33 GPa