pyroxenite: meaning, definition, pronunciation and examples
C2 / Very LowTechnical (Geology/Petrology)
Quick answer
What does “pyroxenite” mean?
A dark, coarse-grained intrusive igneous rock composed almost entirely of pyroxene minerals.
Audio
Pronunciation
Definition
Meaning and Definition
A dark, coarse-grained intrusive igneous rock composed almost entirely of pyroxene minerals.
Any rock, particularly found in layered igneous complexes or as xenoliths in basalt, where pyroxene is the dominant mineral (typically >90%).
Dialectal Variation
British vs American Usage
Differences
No differences in meaning, spelling, or application. It is a standard international petrological term.
Connotations
None; a purely scientific, descriptive term.
Frequency
Equally rare and confined to geological discourse in both varieties.
Grammar
How to Use “pyroxenite” in a Sentence
[The] pyroxenite [is composed of/clinopyroxene/orthopyroxene][A] pyroxenite [xenolith/layer] [occurs/is found]Pyroxenite [forms/is associated with]Vocabulary
Collocations
Examples
Examples of “pyroxenite” in a Sentence
verb
British English
- The magma body began to pyroxenitise as it cooled. (Note: extremely rare/technical derivation)
American English
- The process can pyroxenitize the surrounding peridotite. (Note: extremely rare/technical derivation)
adjective
British English
- The pyroxenitic layers were clearly visible in the cliff face.
American English
- Pyroxenitic compositions are key to understanding the mantle's heterogeneity.
Usage
Meaning in Context
Business
Not used.
Academic
Used in geology, petrology, and earth science research papers and textbooks to describe rock specimens and discuss mantle processes or magmatic differentiation.
Everyday
Virtually never used.
Technical
The primary context. Used in geological surveys, mineral exploration reports, and petrographic descriptions.
Vocabulary
Synonyms of “pyroxenite”
Strong
Neutral
Weak
Vocabulary
Antonyms of “pyroxenite”
Watch out
Common Mistakes When Using “pyroxenite”
- Misspelling as 'pyroximite', 'pyroxinite', or 'pyroxenate'.
- Misidentifying any dark igneous rock (e.g., gabbro) as pyroxenite.
- Using it as a general term for any rock containing pyroxene (it must be dominant).
FAQ
Frequently Asked Questions
Pyroxenite is a plutonic (intrusive) rock, meaning it forms from magma that cools slowly underground, resulting in its coarse-grained texture.
Almost never. It is not a common building or decorative stone. You might encounter it in a specialized geology museum or as a sample in a university department.
Peridotite is also an ultramafic rock, but it is dominated by olivine, whereas pyroxenite is dominated by pyroxene.
It is important because certain types are thought to be key components of the Earth's mantle. Studying them helps scientists understand mantle processes, magma generation, and the planet's interior composition.
A dark, coarse-grained intrusive igneous rock composed almost entirely of pyroxene minerals.
Pyroxenite is usually technical (geology/petrology) in register.
Pyroxenite: in British English it is pronounced /paɪˈrɒk.sɪ.naɪt/, and in American English it is pronounced /paɪˈrɑːk.sə.naɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
PYRO (fire) + XEN (foreign, stranger) + ITE (rock). Think: "A fiery, strange-looking rock."
Conceptual Metaphor
N/A (Highly technical term with little metaphorical extension)
Practice
Quiz
Pyroxenite is most closely associated with which field of study?