What Is Diorite Texture

Diorite is the plutonic equivalent of andesite. Group – plutonic. Colour – typically speckled black and white. Texture – phaneritic (medium to coarse grained).

What is the texture and composition of diorite?

Diorite is a coarse-grained, intrusive igneous rock that is intermediate in composition between granite and gabbro. Diorite is composed primarily of plagioclase feldspar, amphibole, and pyroxine minerals with small amounts of biotite mica. It typically contains very little quartz.

Is diorite coarse or fine grained?

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 biotite.