tetradymite

[te-trad-uh-mahyt]

noun

1. a mineral, bismuth telluride and sulfide, Bi 2 Te 2 S, occurring in soft-gray to black foliated masses.

tetradymite

/ tɛˈtrædɪˌmaɪt /

noun

1. a grey metallic mineral consisting of a telluride and sulphide of bismuth. Formula: Bi 2 Te 2 S

Word History and Origins

Origin of tetradymite¹

1840–50; < Greek tetrádym ( os ) fourfold ( tetra-, didymous ) + -ite ¹; modeled on German Tetradymit

Word History and Origins

Origin of tetradymite¹

C19: from Late Greek tetradumos fourfold, from Greek _tetra- + didumos double

Example Sentences

The tritelluride constitutes the mineral tetradymite, Bi2Te3.

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It is also found in some comparatively rare minerals, such as tetradymite, combined with tellurium, and associated with gold.

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