bournonite

[ bawr-nuh-nahyt, bohr-, boor- ]

nounMineralogy.
  1. a sulfide of lead, antimony, and copper, PbCuSbS3, occurring in gray to black crystals or granular masses.

Origin of bournonite

1
1795–1805; named after Count J. L. de Bournon (died 1825), French mineralogist; see -ite1
  • Also called cogwheel ore.

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