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A '''phenocryst''' is a relatively large [[crystal]] set into the [[groundmass]] of an [[igneous rock]] to give a [[porphyritic]] texture.
A '''phenocryst''' is a relatively large [[crystal]] set into the [[groundmass]] of an [[igneous rock]] to give a [[porphyritic]] texture.
==Sources==
==Sources==
*Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995), ''p. 251''
*Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995), ''p. 251''
[[category:Mineralogy]]
[[category:Mineralogy]]