Recent Examples on the WebThe phenocryst in this image has a core of biotite mica, already betraying the complex history of magma at Aucanquilcha.—Erik Klemetti, Discover Magazine, 2 Dec. 2011
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'phenocryst.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
French phénocryste, from Greek phainein to show + krystallos crystal — more at fancy
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