[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a mineral with formula of Pb2+Cr6+O4 or Pb(CrO4). The corresponding IMA (International Mineralogical Association) number is  . The IMA symbol is Crc."}, {"from": "gpt", "value": "[O].[O].[O].[O].[Cr].[Pb]"}]