AM_Tomichite Formula: (Ti2.41 V2.295 Fe2.295) Ba.35 As.94 O14 Name: Tomichite Unit cell: 7.105 14.217 5.043 90.0 104.97 90.0 , V=492.11 Space group: A12/M1 (12)

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