[{"from": "human", "value": "Describe this molecule. [O][Fe][=O]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of (Fe3+,Ni2+)8(OH,O)16Cl1.25\u00b7nH2O. The corresponding IMA (International Mineralogical Association) number is IMA1962-004. The IMA symbol is Akg."}]