[ te-truh-hee-drahyt ]
/ ˌtɛ trəˈhi draɪt /
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.
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Words nearby tetrahedrite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for tetrahedrite
In external form these crystals are cubic with inclined hemihedrism, the symmetry being the same as in blende and tetrahedrite.
Tetrahedrite, blende, diamond, boracite and pharmacosiderite are substances which crystallize in this class.
British Dictionary definitions for tetrahedrite
/ (ˌtɛtrəˈhiːdraɪt) /
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