granodiorite

noun

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

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

Examples from the Web for granodiorite

Historical Examples of granodiorite

From other areas the same materials are present plus sandstone, granite, and granodiorite.
The Topanga Culture Final Report on Excavations, 1948
A. E. Treganza

granodiorite in Science

granodiorite

[grăn′ə-dī′ə-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.