phenocryst

(fē′nə krist)

noun

a relatively large and usually conspicuous crystal found in a fine-grained matrix in porphyritic igneous rock

Origin: Fr phénocryste < Gr phainein, to show (see fantasy) + krystallos, crystal

See phenocryst in American Heritage Dictionary 4

noun

A conspicuous, usually large, crystal embedded in porphyritic igneous rock.

Origin:

Origin: pheno-

Origin: + cryst(al)

Related Forms:

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