AM_Yeatmanite Formula: Mn9 Sb2 Zn6 Si3.8 Fe.2 O28 Name: Yeatmanite Unit cell: 5.544 11.683 9.134 92.06 101.19 76.34 , V=563.92 Space group: P-1 (2)

Kato T , Mineralogical Journal , 13 (1986) p.53-64, The crystal structure of yeatmanite, Locality: Franklin, New Jersey, USA