In areas where diorite occurs near the surface, it is sometimes mined for use as a crushed stone. It has a durability that compares favorably to granite and trap rock. It is used as a base material in the construction of roads, buildings, and parking areas. It is also used as a drainage stone and for erosion control.

What is importance of diorite?

One important use is as stone for buildings and statues. Diorite was used extensively by ancient civilizations for vases and other decorative artwork and is still used for art today (Figure 1). Granite (figure 2) is used both in building construction and for statues. It is also a popular choice for kitchen countertops.

What is special about diorite?

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.