[{"from": "human", "value": "Provide a description of this molecule. [OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[OH1-1].[O][=S][=Branch1][C][=O][O][Al][Branch1][Ring2][O][Ring1][Branch1][O][S][=Branch1][C][=O][=Branch1][C][=O][O][Al][O][S][=Branch1][C][=O][=Branch1][C][=O][O][Ring1][=Branch1].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a mineral with formula of Ca6Al2(S6+O4)3(OH)12\u00b727H2O or Ca6Al2(SO4)3(OH)12\u00b727H2O. The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Ett."}]