AM_Ixiolite Formula: (Ta.438 Fe.177 Sn.128 Nb.124 Mn.12 Zr.006 Ti.006 W.001) O2 Name: Ixiolite Unit cell: 5.731 4.742 5.152 90.0 90.0 90.0 , V=140.01 Space group: PCAN (60)

Nickel E H , Rowland J F , McAdam R C , American Mineralogist , 48 (1963) p.961-979, Ixiolite - a columbite substructure, sample M-6591, note that the coordinates have been put into a standard setting