granodiorite

/ (ˌɡrænəʊˈdaɪəˌraɪt) /

noun

a coarse-grained acid igneous rock containing almost twice as much plagioclase as orthoclase: intermediate in composition between granite and diorite

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Word Origin for granodiorite

C19: from grano + diorite
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

Example sentences from the Web for granodiorite

Scientific definitions for granodiorite

granodiorite
[ grăn′ə-dīə-rīt′ ]

A coarse-grained igneous rock consisting primarily of quartz, plagioclase, and potassium feldspar, and also containing biotite, hornblende, or pyroxene. It is the coarse-grained equivalent of dacite.
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