Diorite is an intrusive rock intermediate in composition between gabbro and granite. It is produced in volcanic arcs, and in mountain building where it can occur in large volumes as batholiths in the roots of mountains (e.g. Scotland, Norway). What is diorite made up of? diorite, medium- to coarse-grained intrusiveRead More →
Diorite is a coarse-grained intrusive igneous rock. It contains large interlocking, randomly oriented crystals. … Slow cooling produces the large crystals. Diorite forms from magma that does not contain a lot of quartz (silica) or the light coloured minerals that make up granite. Is diorite a rare rock? Diorite DioriteRead More →
Composition of Diorite: It has hornblende, biotite, and pyroxene minerals as minor content. Diorite has traces of other minerals found in other igneous rocks. The presence of quartz and feldspar gives it a contrasting black & white appearance. If it has too much quartz content, it becomes quartz diorite. DoesRead More →