tetradymite

(te tradi mīt′)

noun

a pale steel-gray mineral, BiTeS, consisting chiefly of tellurium and bismuth

Origin: Ger tetradymit < Gr tetradymos, fourfold (because it occurs in compound twin crystals) + Ger -it, -ite

See tetradymite in American Heritage Dictionary 4

noun
A steel-gray mineral, chiefly Bi2Te2S.

Origin:

Origin: German Tetradymit

Origin: , from Late Greek tetradumos, fourfold (from the double twin crystals in which it usually is found)

Origin: : Greek tetra-, tetra-

Origin: + didumos, double; see dwo- in Indo-European roots

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