Citation: Takeuchi, Y. (1956). The crystal structure of vonsenite. Mineralogical Journal (Japan), 2, pp. 19-26.
Formula: B Fe2.25 Mg0.75 O5
Chemical name: (Fe0.625 Mg0.375)2 Fe (B O3) O2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: B4 Fe12 Mg8 O20 (B Fe3 Mg2 O5)
Multiplicity: 1