- a fine-grained or porphyritic granitic rock with a micrographic intergrowth of the minerals of the groundmass.
Origin of granophyre
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Examples from the Web for granophyre
Still later, dolerite sills and sheets and dikes of granophyre and quartz felsite followed in the same region.
This is the essential distinction between a granite and a quartz-porphyry or a granophyre.Volcanoes: Past and Present
- 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
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
- A fine-grained igneous rock that has large intergrown crystals of quartz and feldspar in the matrix.
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