phenocryst definition

  • noun:
    • A conspicuous, typically huge, crystal embedded in porphyritic igneous rock.
    • any relatively large crystal embedded in a more fine-grained or glassy igneous stone
    • One of the prominent embedded crystals of a porphyry.
    • among prominent crystals in a porphyritic rock.

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  • Sentence for "phenocryst"
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