[{"from": "human", "value": "Provide a description of this molecule. [C][=Branch1][C][=O][Branch1][C][O][O].[Mg+2]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Mg5(CO3)4(OH)2\u00b74H2O. The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Hmgs."}]