bornite

bornite
bornitic /bawr nit"ik/, adj.
/bawr"nuyt/, n.
a common mineral and important ore of copper, copper iron sulfide, Cu5FeS4, occurring in masses, of brownish color when first exposed to the air; peacock ore.
[1850-55; named after I. von Born (1742-91), Austrian mineralogist; see -ITE1]

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Common copper-ore mineral, copper and iron sulfide (Cu5FeS4).

Typical occurrences are found in Mount Lyell, Tasmania; Chile; Peru; and Butte, Mont. Bornite may form isometric crystals but occurs most commonly as irregular masses. Under appropriate geologic conditions, it alters to chalcocite and other copper minerals.

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      a copper-ore mineral, copper and iron sulfide (Cu5FeS4). Typical occurrences are found in Mount Lyell, Tasmania; Chile; Peru; and Butte, Mont., U.S. Bornite, one of the common copper minerals, forms isometric crystals but is seldom found in these forms. It alters readily upon weathering to chalcocite and other copper minerals. For detailed physical properties, see sulfide mineral (table).

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Universalium. 2010.

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Look at other dictionaries:

  • Bornite — Bornite[1] Catégorie II : sulfures et sulfosels[2] …   Wikipédia en Français

  • bornite — ● bornite nom féminin (de Ignaz von Born, nom propre) Sulfure naturel de fer et de cuivre Cu5FeS4. ● bornite (synonymes) nom féminin (de Ignaz von Born, nom propre) Sulfure naturel de fer et de cuivre Cu 5 FeS... Synonymes : érubescite …   Encyclopédie Universelle

  • Bornite — Bor nite, n. [Named after Von Born, a mineralogist.] (Min.) A valuable ore of copper, containing copper, iron, and sulphur; also called {purple copper ore} (or {erubescite}), in allusion to the colors shown upon the slightly tarnished surface.… …   The Collaborative International Dictionary of English

  • bornite — [bôr′nīt΄] n. [after Ignaz von Born (1742 91), Austrian metallurgist] a reddish brown, soft, brittle, cubic mineral, copper iron sulfide, Cu5FeS4, an ore of copper that tarnishes to a dark purplish color when it is fractured …   English World dictionary

  • Bornite — infobox mineral name = Bornite category = Sulfide mineral boxwidth = boxbgcolor = imagesize = caption = formula = Cu5FeS4 molweight = 342.681 color = Copper red, bronze brown, purple habit = Granular, massive, disseminated Crystals pseudocubic,… …   Wikipedia

  • bornite — bornitas statusas T sritis chemija apibrėžtis Mineralas. formulė Cu₅FeS₄ atitikmenys: angl. bornite rus. борнит …   Chemijos terminų aiškinamasis žodynas

  • bornite — noun Etymology: German Bornit, from Ignaz von Born died 1791 Austrian mineralogist Date: circa 1847 a brittle metallic looking mineral that consists of a sulfide of copper and iron and is a valuable copper ore …   New Collegiate Dictionary

  • bornite — noun A reddish mineral that tarnishes on exposure to air; it is a mixed sulfide of iron and copper with the chemical formula CuFeS and is an important ore of copper …   Wiktionary

  • bornite — bor·nì·te s.f. TS mineral. minerale di color bronzo, iridescente, costituito da solfuro di ferro e rame, presente anche in Liguria e in Toscana, utilizzato per l estrazione del rame Sinonimi: erubescite. {{line}} {{/line}} DATA: 1875. ETIMO: der …   Dizionario italiano

  • bornite — born·ite …   English syllables

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