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monzonite

noun mon·zo·nite \ män-ˈzō-ˌnīt , ˈmän-zə- \

Definition of monzonite

: a granular igneous rock composed of plagioclase and orthoclase in about equal quantities usually together with augite and biotite

Origin and Etymology of monzonite

French, from Mount Monzoni, Italy

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First Known Use: 1895

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