Enstatite_21 Formula: Si Mg O3 Name: Enstatite Unit cell: 18.216 8.813 5.179 90.0 90.0 90.0 , V=831.42 Space group: PBCA (61)
Hawthorne F C , Ito J , The Canadian Mineralogist , 15 (1977) p.321-338, Synthesis and crystal-structure refinement of transition-metal, orthopyroxenes I: Orthoenstatite and (Mg, Mn, Co) orthopyroxene