argillite: meaning, definition, pronunciation and examples
C2 (Very Low Frequency)Specialized Technical / Academic
Quick answer
What does “argillite” mean?
A fine-grained, dense, non-fissile sedimentary rock composed primarily of clay-sized particles, intermediate between shale and slate.
Audio
Pronunciation
Definition
Meaning and Definition
A fine-grained, dense, non-fissile sedimentary rock composed primarily of clay-sized particles, intermediate between shale and slate.
In archaeology and anthropology, argillite can refer specifically to a type of black, carbonaceous shale or mudstone used by Indigenous peoples of the Pacific Northwest (particularly the Haida) for carving ceremonial and decorative objects, such as pipes and totems.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. Usage is equally specialized in both varieties.
Connotations
Neutral and technical in both contexts.
Frequency
Extremely rare in general discourse in both regions. Slightly more likely to be encountered in North American contexts due to the fame of Haida argillite carvings.
Grammar
How to Use “argillite” in a Sentence
[The/An] argillite [verb e.g., forms, is found, was used][Noun] made of/from argillite[To] carve/sculpt argilliteVocabulary
Collocations
Examples
Examples of “argillite” in a Sentence
adjective
British English
- The argillite layers within the formation are particularly resistant to erosion.
American English
- The museum acquired a new argillite artifact for its Northwest Coast collection.
Usage
Meaning in Context
Academic
Used in geology, archaeology, and anthropology papers to describe rock types or specific cultural artefacts.
Everyday
Virtually never used.
Technical
Precise term in geological surveys, mineralogy, and descriptions of Indigenous art.
Vocabulary
Synonyms of “argillite”
Neutral
Weak
Watch out
Common Mistakes When Using “argillite”
- Misspelling as 'argillate' or 'argilite'.
- Using it as a general term for any soft stone.
- Pronouncing it with a hard 'g' (/ɡ/) instead of the soft 'g' (/dʒ/).
FAQ
Frequently Asked Questions
No. Soapstone (steatite) is a metamorphic rock composed primarily of talc, making it much softer and greasier to the touch than the harder, denser argillite.
Yes. Argillite as a geological formation exists worldwide. However, the specific cultural association with 'argillite' carving is predominantly linked to the Haida and their sources on Haida Gwaii (British Columbia, Canada).
In both British and American English, the emphasis is on the first syllable: AR-gi-lite. The 'g' is soft, like a 'j' sound (/dʒ/).
As a common sedimentary rock, it has little intrinsic mineral value. However, historically and artistically significant Haida argillite carvings are highly prized by museums and collectors, commanding high values.
A fine-grained, dense, non-fissile sedimentary rock composed primarily of clay-sized particles, intermediate between shale and slate.
Argillite is usually specialized technical / academic in register.
Learning
Memory Aids
Mnemonic
ARGILLITE sounds like 'ARGILLA' (Latin for clay) + 'LITE' (stone). Think: 'A clay-like stone.'
Conceptual Metaphor
STONE AS CANVAS (for the cultural artifact sense): The argillite is a medium for storing and transmitting cultural stories and artistry.
Practice
Quiz
What is the primary field of study where the term 'argillite' is used?