GNU Collaborative International Dictionary of English

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  1.       

    Sylvanite , n. [Fr. Transylvania, where first found.] (Min.) A telluride of gold and silver, (Au, Ag)Te2, of a steel gray, silver white, or brass yellow. It often occurs in implanted crystals resembling written characters, and hence is called graphic tellurium. H., 1.5-2. Sp.gr., 7.9-8.3.
    Webster 1913 Suppl.

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