AM_Fetiasite_1 Formula: As2 Fe2.38 Ti.54 O7 Name: Fetiasite Unit cell: 10.614 3.252 8.945 90.0 108.95 90.0 , V=292.02 Space group: P121/M1 (11)

Graeser S , Schwander H , Demartin F , Gramaccioli C M , Pilati T , Reusser E , American Mineralogist , 79 (1994) p.996-1002, Fetiasite (Fe2+,Fe3+,Ti)3O2[As2O5], a new arsenite mineral: Its description, and structure determination, Note: Sample A, Locality: Cervandone