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cogwheel ore

 - 2 dictionary results

bour⋅non⋅ite

[bawr-nuh-nahyt, bohr-, boor-]
–noun Mineralogy.
a sulfide of lead, antimony, and copper, PbCuSbS3, occurring in gray to black crystals or granular masses.
Also called cogwheel ore.


Origin:
1795–1805; named after Count J. L. de Bournon (d. 1825), French mineralogist; see -ite 1
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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