Citation: Brigatti, M.F.; Capedri, S.; Bigi, S. (1991). Crystal chemistry of Fe- and Cr-rich warwickite. American Mineralogist, 76, pp. 1380-1388.
Formula: B3.96 Cr0.16 Fe2.6 Mg4.64 O16 Si0.04 Ti0.6
Chemical name: Mg4.64 Fe2.6 Cr0.16 Ti0.6 O4 (B0.99 Si0.01 O3)4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: B4 Cr4 Fe8 Mg8 O16 Si4 Ti4 (B Cr Fe2 Mg2 O4 Si Ti)
Multiplicity: 1