AM_Paracoquimbite Formula: Fe2 S3 O21 H9 Name: Paracoquimbite Unit cell: 10.926 10.926 51.3 90.0 90.0 120.0 , V=5303.60 Space group: R11-3 (1)

Robinson P D , Fang J H , American Mineralogist , 56 (1971) p.1567-1572, Crystal structures and mineral chemistry of hydrated ferric sulphates: II. The, crystal structure of paracoquimbite