Phenocryst

From Conservapedia
Jump to: navigation, search

A phenocryst is a relatively large crystal set into the groundmass of an igneous rock to give a porphyritic texture.

Sources

  • Pellant, Chris. The Complete Book of Rocks and Minerals, Dorling Kindersley Inc.: New York (1995), p. 251
Retrieved from "https://conservapedia.com/index.php?title=Phenocryst&oldid=1259297"