AM_Cordierite_3 Formula: (Mg1.91 Fe.09) Al4 Si5 O18 Name: Cordierite Unit cell: 17.149 9.759 9.352 90.0 90.0 90.0 , V=1565.12 Space group: CCCM (66)

Hochella M F , Brown G E , Ross F K , Gibbs G V , American Mineralogist , 64 (1979) p.337-351, High-temperature crystal chemistry of hydrous Mg- and Fe-cordierite, White Well, T = 775 C