Citation: Hazen, R. M.; Finger, L. W.; Ko, J. (1992). Crystal chemistry of Fe-bearing anhydrous phase B: Implications for transition zone mineralogy. American Mineralogist, 77, pp. 217-220.
Formula: Fe1.616 Mg12.364 O24 Si5
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe28 Mg28 O48 Si10 (Fe14 Mg14 O24 Si5)
Multiplicity: 1