Citation: Wallace, J. H.; Wenk, H. R. (1980). Structure variation in low cordierites sci 1018. American Mineralogist, 65, pp. 96-111.
Formula: Al3.836 Fe1.252 H0.58 Mg1.252 O18.58 Si4.83
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al20 Fe8 Mg8 O72 Si28 (Al5 Fe2 Mg2 O18 Si7)
Multiplicity: 1