Citation: Clark, J. R.; Ross, M.; Appleman, D. E. (1971). Crystal chemistry of a lunar pigeonite class b data refinement. American Mineralogist, 56, pp. 888-908.
Formula: Fe0.46 Mg0.54 O3 Si
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe8 Mg8 O24 Si8 (Fe Mg O3 Si)
Multiplicity: 1
Coordination sequences: