AM_Tomichite_1 Formula: (Ti2.98 V3.02 Fe) As O14 Name: Tomichite Unit cell: 7.119 14.176 4.992 90.0 105.1 90.0 , V=486.39 Space group: P121/M1 (11)

Grey I E , Madsen I C , Harris D C , American Mineralogist , 72 (1987) p.201-208, Barian tomichite, Ba.5(As2).5Ti2(V,Fe)5O13(OH), its crystal structure and, relationship to derbylite and tomichite