sunstone: meaning, definition, pronunciation and examples

C2
UK/ˈsʌn.stəʊn/US/ˈsʌn.stoʊn/

Technical (geology, gemology), Literary/poetic

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Quick answer

What does “sunstone” mean?

A translucent mineral, often feldspar, with a glittering spangled appearance due to included plates of hematite or goethite.

Audio

Pronunciation

Definition

Meaning and Definition

A translucent mineral, often feldspar, with a glittering spangled appearance due to included plates of hematite or goethite.

A gemstone valued for its aventurescence (glittering effect); sometimes used as a trade name for certain types of feldspar or glass with similar appearance. May also refer poetically or in fantasy literature to a mythical stone associated with the sun.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. Spelling is consistent.

Connotations

Neutral technical term in both varieties. Potential for slightly more literary/mythical connotation in general British contexts due to older literary traditions, but this is minimal.

Frequency

Equally low frequency in both varieties, confined to specialist or niche contexts.

Grammar

How to Use “sunstone” in a Sentence

[The/This] sunstone [has/contains/exhibits] [property]A sunstone [from/of] [location]

Vocabulary

Collocations

strong
Oregon sunstonefeldspar sunstoneaventurescent sunstonepolished sunstone
medium
piece of sunstonesunstone jewelleryred sunstonenatural sunstone
weak
bright sunstoneancient sunstonerough sunstonesparkling sunstone

Examples

Examples of “sunstone” in a Sentence

adjective

British English

  • The sunstone pendant caught the light beautifully.
  • She preferred the sunstone effect in the feldspar.

American English

  • The sunstone necklace was her favorite.
  • It had a distinctive sunstone shimmer.

Usage

Meaning in Context

Business

Rare. Possibly in niche jewellery or crystal trade: 'We source ethical sunstone for our new collection.'

Academic

Used in geology and mineralogy papers: 'The schiller in this sunstone is caused by copper inclusions.'

Everyday

Very rare. Most likely in contexts of crystal healing, jewellery shopping, or fantasy fandom.

Technical

Standard term in gemology and mineralogy for a specific variety of feldspar exhibiting aventurescence.

Vocabulary

Synonyms of “sunstone”

Strong

aventurescent feldspar

Neutral

aventurine feldsparheliolite

Weak

glittering stonespangled gem

Vocabulary

Antonyms of “sunstone”

matte stoneopaque mineral

Watch out

Common Mistakes When Using “sunstone”

  • Using 'sunstone' as a generic term for any yellow/orange gem (e.g., citrine, amber).
  • Capitalising it unnecessarily unless part of a proper name like 'Oregon Sunstone'.

FAQ

Frequently Asked Questions

Yes, it is a real variety of feldspar (often oligoclase or labradorite) known for its spangled appearance.

Significant deposits are found in Oregon (USA), Norway, India, and Russia.

No, 'sunstone' is exclusively a noun in modern English.

Sunstone is a feldspar; aventurine is a quartz. Both exhibit aventurescence, but they are different minerals.

A translucent mineral, often feldspar, with a glittering spangled appearance due to included plates of hematite or goethite.

Sunstone is usually technical (geology, gemology), literary/poetic in register.

Sunstone: in British English it is pronounced /ˈsʌn.stəʊn/, and in American English it is pronounced /ˈsʌn.stoʊn/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • None established.

Learning

Memory Aids

Mnemonic

Think of a stone that captures the sparkle of sunlight on water. SUN + STONE = a stone that holds the sun's glitter.

Conceptual Metaphor

A CAPTURED LIGHT SOURCE (The stone is a container for sunlight/sparkle).

Practice

Quiz

Fill in the gap
The geologist identified the specimen as due to its distinctive glittering platelets of hematite.
Multiple Choice

What is the primary characteristic of a sunstone?