Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A grayish-black mineral, essentially (CuFe)12Sb4S13, often containing other elements, and used as an ore of copper.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A complex ore of copper, a mixed sulfide of copper, iron, zinc, silver and antimony.

from the GNU version of the Collaborative International Dictionary of English

  • n. A sulphide of antimony and copper, with small quantities of other metals. It is a very common ore of copper, and some varieties yield a considerable presentage of silver. Called also gray copper ore, fahlore, and panabase.

from The Century Dictionary and Cyclopedia

  • n. A mineral often occurring in tetrahedral crystals (whence the name), also massive, of an iron-black color and brilliant metallic luster.

Etymologies

German Tetra├źdrit, from Greek tetraedros, four-faced (from its four-faced crystals); see tetrahedron.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Named for its tetrahedral crystals in 1845. (Wiktionary)

Examples

  • Plus, it's on a contrasting matrix of black tetrahedrite.

    In Pictures: Highlights Of Marc Weill's Mineral Collection

  • Jamesonite, bournonite, and tetrahedrite (sulphantimonides of lead and copper), when found in lead-silver deposits, are to some extent

    The Economic Aspect of Geology

  • These are found in granitic rocks forming the core of the high Cordillera Real and in the adjacent intruded sediments, in narrow fissure veins and broader brecciated zones containing the typical ore and gangue minerals described above, and also, in many cases, silver-bearing sulphides (chiefly tetrahedrite).

    The Economic Aspect of Geology

  • Mineralization comprises sphalerite, galena and tetrahedrite in sulphide-rich veins ranging from a few centimeters to greater than one meter thick and heavily disseminated sphalerite, galena and tetrahedrite between the veins.

    Marketwire - Breaking News Releases

  • Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue.

    The Earth Times Online Newspaper

  • The 20 vein is comprised of an assemblage of semi-massive irregular clusters of sulphide chalcopyrite, pyrrhotite, pyrite, and minor tetrahedrite.

    Marketwire - Breaking News Releases

  • For silver, the commercial deposits that are the most important are the compounds that are the minerals tetrahedrite and argentite.

    CreationWiki - Recent changes [en]

  • Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart - siderite gangue.

    Marketwire - Breaking News Releases

  • Mineralization at the Haldane property is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue.

    StreetInsider.com News Articles

  • Mineralization at the Haldane property is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite - tennantite in quart-siderite gangue.

    Marketwire - Breaking News Releases

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