granodiorite

/ (ˌɡrænəʊˈdaɪəˌraɪt) /

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

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.