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bornite
[ bawr-nahyt ]
noun
- a common mineral and important ore of copper, copper iron sulfide, Cu 5 FeS 4 , occurring in masses, of brownish color when first exposed to the air; peacock ore.
bornite
/ ˈbɔːnaɪt /
noun
- a mineral consisting of a sulphide of copper and iron that tarnishes to purple or dark red. It occurs in copper deposits. Formula: Cu 5 FeS 4 Also calledpeacock ore
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Other Words From
- bor·nit·ic [bawr-, nit, -ik], adjective
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Word History and Origins
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Word History and Origins
Origin of bornite1
C19: named after I. von Born (1742–91), Austrian mineralogist; see -ite 1
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Example Sentences
For example, all the specimens of bornite and pyrrhotite examined yielded sulphuretted hydrogen with tartaric, citric, and oxalic acids, but chalcopyrite and pyrite do not.
From Project Gutenberg
In the easy recognition of the secondary copper sulphides, chalcocite, bornite, etc., the engineer finds a finger-post on the road to extension in depth; and the directions upon this post are not to be disregarded.
From Project Gutenberg
Much of the copper of commerce is made from chalcopyrite and bornite, and these ores are more difficult to work.
From Project Gutenberg
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