AM_Enstatite_53
Formula: Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6
Name: Enstatite
Unit cell: 18.051 8.6683 5.1244 90.0 90.0 90.0 , V=801.82
Space group: PBCA (61)

Hugh-Jones D A , Chopelas A , Angel R J , Physics and Chemistry of Minerals , 24 (1997) p.301-310, Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes, Sample: P = 4.93 GPa, natural orthopyroxene