A phanerite[1] is an igneous rock whose microstructure is made up of crystals large enough to be distinguished with the unaided human eye. In contrast, the crystals in an aphanitic rock are too fine-grained to be identifiable. Phaneritic texture forms when magma deep underground in the plutonic environment cools slowly, giving the crystals time to grow.
^Monroe, James Stewart; Wicander, Reed; Hazlett, Richard W. (2007). "4". In Dodson, Keith (ed.). Physical Geology: Exploring the Earth. Earth Sciences (6 ed.). USA: Thompson Brooks/Cole. p. 115. ISBN0495011487.
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phanerite, phanerite, igneous, rock, whose, microstructure, made, crystals, large, enough, distinguished, with, unaided, human, contrast, crystals, aphanitic, rock, fine, grained, identifiable, phaneritic, texture, forms, when, magma, deep, underground, pluton. A phanerite 1 is an igneous rock whose microstructure is made up of crystals large enough to be distinguished with the unaided human eye In contrast the crystals in an aphanitic rock are too fine grained to be identifiable Phaneritic texture forms when magma deep underground in the plutonic environment cools slowly giving the crystals time to grow Close up of granite a phanerite rock from Yosemite National Park in California U S Phaneritic diorite from MassachusettsPhanerites are often described as coarse grained or macroscopically crystalline References edit Monroe James Stewart Wicander Reed Hazlett Richard W 2007 4 In Dodson Keith ed Physical Geology Exploring the Earth Earth Sciences 6 ed USA Thompson Brooks Cole p 115 ISBN 0495011487 nbsp This article related to petrology is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Phanerite amp oldid 1146106818, wikipedia, wiki, book, books, library,
