[{"from": "human", "value": "Provide a description of this molecule. [H+1].[O-1][Si][=Branch1][C][=O][O-1].[O-1][Si][=Branch1][C][=O][O-1].[O-1][Si][=Branch1][C][=O][O-1].[Na+1].[Ca+2].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of NaCa2Si3O8(OH). The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Pct."}]