bornite
Definition
Noun: * A reddish-brown to copper-red mineral consisting of a sulfide of copper and iron (Cu₅FeS₄). It is an important ore of copper, often tarnishing to an iridescent purple, blue, and red surface, which gives it the common name "peacock ore."
Usage
- As a subject: "Bornite is frequently found in hydrothermal veins."
- As an object: "Miners extracted a large quantity of bornite from the new shaft."
- With modifiers: "The specimen displayed classic peacock bornite coloration."
Examples
- The geologist identified the shiny, purple-tarnished rock as bornite.
- Bornite and chalcopyrite are the two primary copper sulfides mined in this region.
- Due to its high copper content, bornite is a valuable economic mineral.
Advanced Usage
- In economic geology, bornite is classified as a primary copper ore mineral.
- The distinctive iridescent tarnish on bornite is caused by surface oxidation.
Variants and Related Words
- Peacock Ore: A common name for bornite, referring specifically to its tarnished, colorful appearance.
- Chalcopyrite: Another copper-iron sulfide mineral (CuFeS₂), often found associated with bornite.
Synonyms
- Peacock ore (common name)
Different Meanings
This word has only one specific meaning as a mineralogical term. It is not used in other general contexts.
Noun
-
a mineral consisting of sulfides of copper and iron that is found in copper deposits
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