bornite

Fetched 2026-10-26 (cache).

Synonyms: bonite

Antonyms: bonite

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|mineral}} A reddish mineral that tarnishes on exposure to air; it is a mixed [[sulfide]] of [[iron]] and [[copper]] with the [[chemical formula]] [[copper|Cu]]₅[[iron|Fe]][[sulfur|S]] and is an important [[ore]] of copper.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.