D defs.my
Entry 1 sense Webster, 1913

Polybasite

· Pol·y·ba·site · IPA
01 n. An iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.
  1. 1.
    An iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.(Min.)