Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A black mineral with a metallic luster, essentially (Ag,Cu)16Sb2S11, that is an ore of silver.

from The Century Dictionary.

  • noun An iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Min.) An iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mineralogy An iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[poly– + bas(is) + –ite.]

Examples

  • It also occurs combined with sulphur (as in argentite), with sulphur and antimony (as in stephanite or brittle silver ore, and in pyrargyrite or ruby silver), and with copper, sulphur, antimony, and arsenic, as in polybasite.

    A Text-book of Assaying: For the Use of Those Connected with Mines.

  • "ruby silver," stephanite or "black silver," and polybasite; the silver-arsenic sulphides, proustite or "light ruby silver" and pearcite; and the silver antimonide, dyscrasite.

    The Economic Aspect of Geology

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