AM_Romerite Formula: Fe3 S4 O30 H28 Name: Romerite Unit cell: 6.463 15.309 6.341 90.53 101.08 85.73 , V=613.98 Space group: P-1 (2)

Fanfani L , Nunzi A , Zanazzi P F , American Mineralogist , 55 (1970) p.78-89, The crystal structure of roemerite