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tetradymiteenUK
te·trad·y·mite T0131200 (tĕ-trăd′ə-mīt′)n. A steel-gray mineral, chiefly Bi2Te2S.
[German Tetradymit, from Late Greek tetradumos, fourfold (from the double twin crystals in which it usually is found) : Greek tetra-, tetra- + didumos, double; see dwo- in Indo-European roots.]tetradymite (tɛˈtrædɪˌmaɪt) n (Minerals) a grey metallic mineral consisting of a telluride and sulphide of bismuth. Formula: Bi2Te2S[C19: from Late Greek tetradumos fourfold, from Greek tetra- + didumos double]tetradymiteenUK
tetradymite[tə′trad·ə‚mīt] (mineralogy) Bi2Te2S A pale steel-gray mineral that usually occurs in foliated masses in auriferous veins; has metallic luster, hardness of 1.5-2 on Mohs scale, and specific gravity of 7.2-7.6. |