[{"from": "human", "value": "Provide a brief overview of this molecule. [O-1][Si][=Branch1][C][=O][O-1].[O-1][Si][=Branch1][C][=O][O-1].[Mg+2].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of CaMgSi2O6. The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Di."}]