[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=Branch1][C][=O][Branch1][=Branch1][C][=Branch1][C][=O][O][O].[O].[Ca]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Ca(C2)6+O4\u00b7H2O or Ca(C2O4)\u00b7H2O. The corresponding IMA (International Mineralogical Association) number is IMA1967 s.p.. The IMA symbol is Whe."}]