Citation: Mokeeva, V.I. (1968). The refinement of the structure of Ludwigite, (Mg1.85 Fe.15) (Fe.60 Al.40) B O3 O2 and distribution of mg, Fe2+ in its cation position. Geokhimiya, 1968, pp. 975-979.
Formula: Al0.4 B Fe0.75 Mg1.85 O5
Chemical name:(Mg1.85 Fe.15) (Fe.60 Al.40) B O3 O2