AM_Melanostibite Formula: Mn (Fe.5 Sb.5) O3 Name: Melanostibite Unit cell: 5.226 5.226 14.325 90.0 90.0 120.0 , V=338.82 Space group: R11-3 (1)

Moore P B , American Mineralogist , 53 (1968) p.1104-1109, Substitutions of the type (Sb0.5Fe0.5)-(Ti): The crystal structure of, melanostibite