granodiorite

/ ˌɡrænəʊˈdaɪəˌraɪt /

noun

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

granodiorite

/ grăn′ə-dī′ə-rīt′ /

1. 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.

Word History and Origins

Origin of granodiorite¹

C19: from grano + diorite

Example Sentences

Early one Wednesday before the Met opened to the public, a gaggle of staffers from the imaging department clustered in the Egyptian wing around the granodiorite statue of Haremhab.

From New York Times

The granodiorite slab announcing the kingly reign of Ptolemy V in Egypt circa 196 BC, better known as the Rosetta Stone, might be considered an early stab at the idea.

From Time

They didn't have to worry about that when they were issuing decrees at Memphis on a nice bit of granodiorite.

From The Guardian

Carved from a single block of dark gray granodiorite, he sits in a form-fitting kilt on a cubic throne covered by hieroglyphics.

From New York Times

The ore is in a series of parallel and overlapping veins striking with the trend of the range, associated with granodiorite intrusives in schist and slate.

From Project Gutenberg