AM_Quenstedtite
Formula: Fe2 S3 O23 H22
Name: Quenstedtite
Unit cell: 6.184 23.6 6.539 94.18 101.73 96.27 , V=924.35
Space group: P-1 (2)

Thomas J N , Robinson P D , Fang J H , American Mineralogist , 59 (1974) p.582-586, Crystal structures and mineral chemistry of hydrated ferric sulfates. IV. The, crystal structure of quenstedtite