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tetrahedrite

[te-truh-hee-drahyt]
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noun
  1. a steel-gray or blackish mineral with a brilliant metallic luster, essentially copper and antimony sulfide, (Cu, Fe, Zn, Ag,)12 Sb4S13, an end member of a series of solid solutions into which arsenic enters to form tennantite: mined as an ore of copper and silver.

Origin of tetrahedrite

1865–70; tetrahedr(on) + -ite1, modeled on German Tetraedrit
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for tetrahedrite

Historical Examples

  • Tetrahedrite, blende, diamond, boracite and pharmacosiderite are substances which crystallize in this class.

    Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7

    Various

  • In external form these crystals are cubic with inclined hemihedrism, the symmetry being the same as in blende and tetrahedrite.


British Dictionary definitions for tetrahedrite

tetrahedrite

noun
  1. a grey metallic mineral consisting of a sulphide of copper, iron, and antimony, often in the form of tetrahedral crystals: it is a source of copper. Formula: (Cu,Fe) 12 Sb 4 S 13
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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