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bournonite

American  
[bawr-nuh-nahyt, bohr-, boor-] / ˈbɔr nəˌnaɪt, ˈboʊr-, ˈbʊər- /

noun

Mineralogy.
  1. a sulfide of lead, antimony, and copper, PbCuSbS 3 , occurring in gray to black crystals or granular masses.


Etymology

Origin of bournonite

1795–1805; named after Count J. L. de Bournon (died 1825), French mineralogist; -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Bournonite; apatite on muscovite; natural zircon in a spray of colors; dozens more minerals he cannot name.

From Literature

Antimony, however, occurs chiefly as the sulphide, stibnite; to a much smaller extent it occurs in combination with other metallic sulphides in the minerals wolfsbergite, boulangerite, bournonite, pyrargyrite, &c.

From Project Gutenberg

BOURNONITE, a mineral species, a sulphantimonite of lead and copper with the formula PbCuSbS3.

From Project Gutenberg