AM_Ferricopiapite
Formula: Fe4.69 S6 O46 H42
Name: Ferricopiapite
Unit cell: 7.39 18.213 7.29 93.67 102.05 99.27 , V=942.18
Space group: P-1 (2)

Fanfani L , Nunzi A , Zanazzi P F , Zanzari A R , American Mineralogist , 58 (1973) p.314-322, The copiapite problem: The crystal structure of a ferrian copiapite