[{"from": "human", "value": "Describe this molecule. [O].[O].[O].[O].[O].[O].[O].[O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1].[Fe+2]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Fe2+S6+O4\u00b77H2O or Fe(SO4)\u00b77H2O. The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Mln."}]