AM_Manganostibite
Formula: Sb As Mn7 O12
Name: Manganostibite
Unit cell: 8.727 18.847 6.062 90.0 90.0 90.0 , V=997.06
Space group: IBMM (74)

Moore P B , American Mineralogist , 55 (1970) p.1489-1499, Manganostibite: A novel cubic close-packed structure type