phenocryst

[US]/ˈfiːnəʊkrɪst/
[UK]/ˈfiːnəˌkrɪst/

Translation

n.a large crystal embedded in a finer-grained matrix in igneous rocks; crystal that is distinctly larger than the surrounding material
Word Forms

Phrases & Collocations

large phenocryst

phenocryst size

phenocryst composition

phenocryst texture

phenocryst abundance

phenocryst formation

phenocryst analysis

phenocryst development

phenocryst identification

phenocryst distribution

Example Sentences

the phenocryst in the rock indicates its formation history.

geologists study phenocrysts to understand volcanic activity.

phenocrysts can provide insights into the magma's composition.

in this sample, the phenocryst is predominantly quartz.

the presence of phenocrysts suggests a slow cooling process.

phenocrysts are often larger than the surrounding matrix.

identifying phenocrysts helps in classifying igneous rocks.

the phenocryst texture can reveal the cooling history of the magma.

some minerals act as phenocrysts in volcanic rocks.

studying the size of phenocrysts can indicate the eruption style.

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