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A fine-grained granite porphyry having a groundmass with irregular intergrowths of quartz and feldspar.

[German Granophyr : grano-, grano- + (Por)phyr, porphyry (from Medieval Latin porphyrium; see porphyry).]

gran′o·phyr′ic (-fîr′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Geological Science) a fine-grained granitic rock in which irregular crystals of intergrown quartz and feldspar are embedded in a groundmass of these minerals
[C19: from gran(ite) + -phyre after porphyry]
granophyric adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈgræn əˌfaɪər)

a porphyritic granitic rock with a micrographic intergrowth of the minerals of the groundmass.
[1880–85; grano- + French (por)phyre porphyry]
gran`o•phy′ric (-ˈfɪr ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The KGR falls within the southern parts of the Mixed Bushveld vegetation unit and has an underlining geology consisting of granite of the Lebowa Granite Suite and some granophyre of the Rashoop Granophyre Suite.
Dickin and Exley (1981) reported an age of 59 3[+ or -]0 07 Ma for the youngest Cuillin centre intrusion, the Coire Uaigneich Granophyre. The Srath na Creitheach centre is small and poorly documented and consists of volcaniclastic breccias, post-dating the Cuillin centre but pre-dating the Red Hills granites (Trewin, 2003).
Interstitial granophyre generally is present in syenogranite samples.
The hardness of the granophyre, the particular boulder shield weathering formation and the cortex (crust) of the rock surface, not only provide innumerable surfaces to produce the images but once created are slow to erode to invisibility.
Geologically, the deposit occurs in the Rashoop Granophyre Suite of the Bushveld Complex.
The sample consists of light grey, sparsely porphyritic, aphanitic rhyolite with potassium feldspar, and lesser amounts of quartz and granophyre phenocrysts.
Granophyre and hybrid pipes in dolerite layer of Slieve Gullion.
(2) The majority of samples contain a mesostasis, which is dominated by skeletal Fe-Ti oxides, Fe-rich clinopyroxene, and apatite with associated granophyre. This mesostasis is interpreted to be a quenched basaltic melt.