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2017 Word of the Year

sylvanite

[sil-vuh-nahyt] /ˈsɪl vəˌnaɪt/
noun
1.
a mineral, gold silver telluride, (AuAg)Te 2 , silver-white with metallic luster, often occurring in crystals so arranged as to resemble written characters: an ore of gold.
Origin of sylvanite
1790-1800
1790-1800; named after Transylvania; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for sylvanite
Historical Examples
  • This side the exposed reef may have been ground down below the sylvanite.

    Rimrock Trail J. Allan Dunn
  • But the strikes were rich because sylvanite is one of the richest of all gold ores.

    Rimrock Trail J. Allan Dunn
  • He figgers this sylvanite lies under this porphyry reef, sabe?

    Rimrock Trail J. Allan Dunn
  • He 'lows it's sylvanite, same as they have over to Boulder County in Colorado.

    Rimrock Trail J. Allan Dunn
  • A small part of the world's supply is obtained from the gold-silver tellurides—calaverite, sylvanite, krennerite, and petzite.

  • Experience counts a lot, of course, but I do know something about sylvanite, or white gold.

    Rimrock Trail J. Allan Dunn
British Dictionary definitions for sylvanite

sylvanite

/ˈsɪlvəˌnaɪt/
noun
1.
a silver-white mineral consisting of a telluride of gold and silver in the form of elongated striated crystals: a source of gold in Australia and North America. Formula: (Au,Ag)Te2
Word Origin
C18: from (Tran)sylvan(ia) + -ite1, with reference to the region where it was first found
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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