Citation: Boffa Ballaran, T.; Frost, D. J.; Miyajima, N.; Heidelbach, F. (2010). The structure of a super-aluminous version of the dense hydrous-magnesium silicate phase D. American Mineralogist, 95, pp. 1113-1116.
Formula: Al1.33 Fe0.21 Mg0.16 O6 Si0.91
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al5 Fe5 Mg5 O6 Si5 (Al5 Fe5 Mg5 O6 Si5)
Multiplicity: 1