👉 In the context of geology and mineralogy, a diorite is a type of igneous rock that typically contains silicate minerals like pyroxene (a calcium oxide) and biotite. These minerals are often found in combination with other minerals such as quartz, feldspar, and mica. A diorite can be formed through several processes including the cooling of magma at the surface of a volcano or lava flow. This process can result in the formation of a mineral-rich