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granophyre

[gran-uh-fahyuh r]
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noun
  1. a fine-grained or porphyritic granitic rock with a micrographic intergrowth of the minerals of the groundmass.
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Origin of granophyre

First recorded in 1880–85; grano- + -phyre
Related formsgran·o·phy·ric [gran-uh-fir-ik] /ˌgræn əˈfɪr ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for granophyre

Historical Examples

  • Still later, dolerite sills and sheets and dikes of granophyre and quartz felsite followed in the same region.

    Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 6

    Various

  • This is the essential distinction between a granite and a quartz-porphyry or a granophyre.


British Dictionary definitions for granophyre

granophyre

noun
  1. a fine-grained granitic rock in which irregular crystals of intergrown quartz and feldspar are embedded in a groundmass of these minerals
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Derived Formsgranophyric (ˌɡrænəʊˈfɪrɪk), adjective

Word Origin

C19: from gran (ite) + -phyre after porphyry
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

granophyre in Science

granophyre

[grănə-fīr′]
  1. A fine-grained igneous rock that has large intergrown crystals of quartz and feldspar in the matrix.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.