Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and sometimes pyroxene.

Diorite is the name used for a group of coarse-grained igneous rocks with a composition between that of granite and basalt. It usually occurs as large intrusions, dikes, and sills within …

Diorite, medium- to coarse-grained intrusive igneous rock that commonly is composed of about two-thirds plagioclase feldspar and one-third dark-coloured minerals, such as hornblende or …

May 15, 2018 · Definition of Diorite: Diorite is a coarse-grained igneous rock that falls within the plutonic category, meaning it forms deep beneath the Earth’s surface through the cooling and …

Diorite is an igneous rock classified as an intermediate intrusive (plutonic) rock based on its geochemical composition. This translates to a position between felsic rocks (high silica …

Diorite is an intrusive igneous rock composed primarily of plagioclase feldspar and smaller amounts of mafic minerals like hornblende and biotite. It has a phaneritic texture, meaning its …

Oct 5, 2015 · Diorite is a plutonic igneous rock with intermediate composition between mafic and felsic rocks. It is visibly crystalline and usually has a granular texture (composed of roughly …