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bour•non•ite



Pronunciation: (bôr'nu-nīt", bōr'-, boor'-), [key]
n. Mineral.
a sulfide of lead, antimony, and copper, PbCuSbS3, occurring in gray to black crystals or granular masses. Also called cogwheel ore.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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