[{"from": "human", "value": "Provide a description of this molecule. [O].[O].[Cl][Cu][Cl]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Cu2+Cl2\u00b72H2O or CuCl2\u00b72H2O. The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Ech."}]