[{"from": "human", "value": "What can you tell me about this molecule? [C][=Branch1][C][=O][Branch1][C][O-1][O-1].[O].[O].[O].[O].[O].[O].[O].[O].[O].[O].[Na+1].[Na+1]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Na2CO3 or Na2(CO3). The corresponding IMA (International Mineralogical Association) number is IMA1981-005. The IMA symbol is Nat."}]