onyx
C1Neutral to formal; technical in geological/mineralogical contexts.
Definition
Meaning
A semiprecious stone, a variety of chalcedony, typically with alternating parallel layers of black and white.
Used to refer to anything with deep black colour or contrasting layers; sometimes used as a proper name.
Linguistics
Semantic Notes
Primarily refers to the gemstone; metaphorical uses for colour or layering are poetic/figurative.
Dialectal Variation
British vs American Usage
Differences
No significant difference in core meaning or usage.
Connotations
Associated with luxury, jewellery, and sometimes mourning jewellery (historically).
Frequency
Equally low frequency in both varieties, used in similar contexts (gemology, jewellery, descriptive writing).
Vocabulary
Collocations
Grammar
Valency Patterns
[noun] made of onyx[adjective] onyxonyx [noun]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None established”
Usage
Context Usage
Business
In jewellery/luxury goods retail: 'The onyx collection launches next quarter.'
Academic
In geology/mineralogy: 'The sample exhibited the characteristic banding of true onyx.'
Everyday
Describing jewellery or decor: 'She was wearing a stunning onyx pendant.'
Technical
In lapidary work: 'The onyx requires careful polishing to avoid fracturing along the layers.'
Examples
By Part of Speech
adjective
British English
- The table had an onyx inlay.
American English
- Her bracelet was made of onyx beads.
Examples
By CEFR Level
- My ring has a black stone. It is onyx.
- She bought a beautiful necklace with a polished onyx pendant.
Learning
Memory Aids
Mnemonic
Think: 'ON Your eXpensive ring' – ONYX is a stone often set in expensive jewellery.
Conceptual Metaphor
BLACK IS LUXURIOUS/SOLEMN (The deep black colour is associated with luxury items or formal elegance.)
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing with 'оникс' (same word, correct). No major trap, but note it is not a common everyday word in either language.
Common Mistakes
- Misspelling as 'onix'.
- Using it as a general synonym for 'black' (it's a specific stone).
- Confusing with 'obsidian' (a volcanic glass).
Practice
Quiz
Which of the following is a key characteristic of onyx?
FAQ
Frequently Asked Questions
No, while black is most common, onyx can also have white, red, or brown bands. Pure black onyx is often dyed.
Onyx is a banded chalcedony (quartz), while marble is a metamorphic rock made of calcite. Onyx is harder and used more for small decorative objects and jewellery.
It can be, but it is less durable than granite and is porous, requiring careful sealing and maintenance. It is more common in bathroom vanities or decorative features.
Compared to common stones, yes, it is considered a semiprecious gemstone. Price depends on quality, colour, and cut, but it is generally less expensive than diamonds, rubies, etc.