[{"from": "human", "value": "Could you give me a brief overview of this molecule? [O].[O].[O].[O].[Cr].[Pb]"}, {"from": "gpt", "value": "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."}]