Citation: Malcherek, T.; Domeneghetti, M. C.; Tazzoli, V.; Ottolini, L.; McCammon, C. A.; Carpenter, M. A. (2001). Structural properties of ferromagnesian cordierites Sample: Zimbabwe, T = 900 C, t = 24h. American Mineralogist, 86, pp. 66-79.
Formula: Al3.984 Fe0.266 Mg1.75 Na0.074 O18 Si5
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 Fe16 Mg8 O72 Si20 (Al4 Fe4 Mg2 O18 Si5)
Multiplicity: 1