D defs.my
Entry 1 sense Webster, 1913

Miargyrite

· Mi·ar·gy·rite · IPA
01 n. A mineral of an iron-black color, and very sectile, consisting principally of sulphur, antimony, and silver.
  1. 1.
    A mineral of an iron-black color, and very sectile, consisting principally of sulphur, antimony, and silver.(Min.)