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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
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Origin of MONZONITE

French, from Mt. Monzoni, Italy
First Known Use: 1895

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