[{"from": "human", "value": "Provide a description of this molecule. [O].[O-2].[O-1][Si][Branch1][C][O-1][Branch1][C][O-1][O-1].[Mg+2].[Al+3].[Fe].[Zn]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Fe2+2Al9Si4O23(OH). The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is St."}]