monzonite

[ mon-zuh-nahyt ]

noun

1. any of a group of granular igneous rocks having approximately equal amounts of orthoclase and plagioclase feldspar, intermediate in composition between syenite and diorite.

monzonite

/ ˈmɒnzəˌnaɪt; ˌmɒnzəˈnɪtɪk /

noun

1. a coarse-grained plutonic igneous rock consisting of equal amounts of plagioclase and orthoclase feldspar, with ferromagnesian minerals

monzonite

/ mŏn-zō′nīt′,mŏn′zə-nīt′ /

1. An igneous rock composed chiefly of plagioclase and orthoclase, with small amounts of amphibole, pyroxene, and biotite. Monzonite contains little or no quartz.

Derived Forms

• monzonitic, adjective

Other Words From

• mon·zo·nit·ic [mon-z, uh, -, nit, -ik], adjective

Word History and Origins

Origin of monzonite¹

1880–85; < German Monzonit, named after Monzoni, mountain in Tyrol; -ite ¹

Word History and Origins

Origin of monzonite¹

C19: from German, named after Monzoni, Tyrolean mountain where it was found