D defs.my
Entry 1 sense Webster, 1913

Tetradymite

· Tet·rad·y·mite · IPA
01 n. A telluride of bismuth. It is of a pale steel-gray color and metallic luster, and usually occurs in foliated masses. Called also telluric b…
  1. 1.
    A telluride of bismuth. It is of a pale steel-gray color and metallic luster, and usually occurs in foliated masses. Called also telluric bismuth.(Min.) Also: telluric bismuth