bornite definition

  • noun:
    • A brownish-bronze, lustrous copper ore with the structure Cu5FeS4 that tarnishes to purple whenever exposed to atmosphere.
    • A reddish mineral that tarnishes on exposure to environment; its a mixed sulfide of metal and copper because of the chemical formula Cu5FeS and is a significant ore of copper.
    • an invaluable ore of copper, containing copper, iron, and sulphur; -- also called purple copper ore (or erubescite), in allusion on colors shown upon the slightly tarnished area.
    • a very important copper ore, comprising about 60 areas of copper, 14 of metal, and 26 of sulphur, found mostly huge, also in isometric crystals.
    • a mineral consisting of sulfides of copper and iron that is found in copper deposits
    • A brownish-bronze, lustrous copper ore with all the composition Cu5FeS4 that tarnishes to purple when confronted with atmosphere.
    • A reddish mineral that tarnishes on exposure to atmosphere; it really is a mixed sulfide of metal and copper with the chemical formula Cu5FeS and it is a significant ore of copper.
    • an invaluable ore of copper, containing copper, iron, and sulphur; -- also referred to as purple copper ore (or erubescite), in allusion into colors shown upon the slightly tarnished surface.
    • A valuable copper ore, consisting of about 60 parts of copper, 14 of metal, and 26 of sulphur, discovered mostly huge, in addition in isometric crystals.
    • a mineral comprising sulfides of copper and iron this is certainly within copper deposits

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