fire opal: meaning, definition, pronunciation and examples

C1
UK/ˈfaɪə(r) ˌəʊ.pəl/US/ˈfaɪɚ ˌoʊ.pəl/

Formal / Technical / Literary

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Quick answer

What does “fire opal” mean?

A variety of opal that displays a fiery, translucent to semi-translucent body colour, often lacking the play-of-colour seen in precious opals, ranging from yellow to orange to red.

Audio

Pronunciation

Definition

Meaning and Definition

A variety of opal that displays a fiery, translucent to semi-translucent body colour, often lacking the play-of-colour seen in precious opals, ranging from yellow to orange to red.

A gemstone prized for its warm body colour, often used in jewellery for its distinct, solid, fiery hue as opposed to a multi-coloured iridescence. It can also be referred to poetically or metaphorically for its intense colour.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. Spelling remains consistent as a two-word compound noun.

Connotations

Identical connotations in both varieties.

Frequency

Equally low-frequency, technical term in both regions.

Grammar

How to Use “fire opal” in a Sentence

The [jewellery item] was set with a fire opal.She admired the [colour/adjective] fire opal in the case.Fire opal from [geographic origin] is highly prized.

Vocabulary

Collocations

strong
genuine fire opalMexican fire opalfiery red fire opalcabochon-cut fire opalset in gold/silver
medium
piece of fire opalcolour of fire opalfire opal ring/necklacetranslucent fire opal
weak
beautiful fire opalrare fire opalexpensive fire opallarge fire opal

Examples

Examples of “fire opal” in a Sentence

verb

British English

  • [Not applicable as a verb]

American English

  • [Not applicable as a verb]

adverb

British English

  • [Not applicable as an adverb]

American English

  • [Not applicable as an adverb]

adjective

British English

  • The fire-opal pendant caught the light.
  • She preferred a fire-opal hue for the gem.

American English

  • The fire-opal necklace was stunning.
  • He described the sunset as having a fire-opal glow.

Usage

Meaning in Context

Business

Used in the gemstone and jewellery trade to describe and value a specific product category.

Academic

Used in geology, mineralogy, and gemmology papers and textbooks.

Everyday

Used when discussing jewellery, gemstones, or in descriptive writing about colours or precious items.

Technical

Standard term in gemmology with specific criteria regarding transparency, body colour, and potential play-of-colour.

Vocabulary

Synonyms of “fire opal”

Strong

precious fire opal (if play-of-colour is present)cherry opal (specific shade)

Neutral

sun opal

Weak

fiery gemstoneorange opalred opal

Vocabulary

Antonyms of “fire opal”

black opalwhite opalmilky opalcommon opal (potch)

Watch out

Common Mistakes When Using “fire opal”

  • Misspelling as 'fireopal' (should be two words or hyphenated: fire-opal).
  • Using it to refer to any opal with red flashes (precious opal can have red fire without being a 'fire opal').
  • Confusing it with 'boulder opal' or 'matrix opal'.

FAQ

Frequently Asked Questions

No. 'Fire' in general gemology refers to the play-of-colour. A 'fire opal' is a specific variety known for its warm body colour (yellow, orange, red), which may or may not also exhibit play-of-colour.

Mexico is the most famous source, particularly the state of Querétaro. It is also found in other countries like Brazil, Honduras, and the United States (Oregon, Nevada).

Yes, if it exhibits play-of-colour. A transparent to translucent opal with a fiery body colour *and* play-of-colour is termed 'precious fire opal'. If it lacks play-of-colour, it is a 'common fire opal'.

Fire opal is relatively soft and sensitive to sudden temperature changes and dry conditions. Clean it only with mild soap and lukewarm water, avoid ultrasonic cleaners, and store it in a slightly humid environment (e.g., with a damp cotton ball) to prevent crazing.

A variety of opal that displays a fiery, translucent to semi-translucent body colour, often lacking the play-of-colour seen in precious opals, ranging from yellow to orange to red.

Fire opal is usually formal / technical / literary in register.

Fire opal: in British English it is pronounced /ˈfaɪə(r) ˌəʊ.pəl/, and in American English it is pronounced /ˈfaɪɚ ˌoʊ.pəl/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • [No common idioms specific to 'fire opal']

Learning

Memory Aids

Mnemonic

Think of a small, captured fire glowing within a stone – that's a FIRE OPAL.

Conceptual Metaphor

FIRE IS A GEMSTONE / VALUABLE OBJECT IS A FIRE ('the fire opal glowed on her finger').

Practice

Quiz

Fill in the gap
The most prized often comes from mines in Mexico and is valued for its transparent, fiery body colour.
Multiple Choice

What is the primary distinguishing feature of a fire opal compared to a precious white opal?