[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule are the two major micas of commerce. Micas are commonly found in ordinary rocks. Inhalation of mica dust presents an occupational hazard."}, {"from": "gpt", "value": "[O-2].[O][=Al][O][Al][=O].[O][=Si][=O].[K+1].[K+1]"}]