Norite is a type of igneous rock that is primarily composed of plagioclase feldspar and pyroxene minerals. It is typically dark in color, often appearing black or dark gray, and is formed from the cooling and solidification of magma beneath the Earth's surface. Norite is classified as a mafic rock, meaning it has a relatively high content of iron and magnesium. This rock is commonly found in large geological formations, particularly in areas with ancient volcanic activity. Norite can be associated with other rock types, such as gabbro and diorite, and is often studied for its mineral composition and formation processes. It is also of interest in the field of geology for understanding the Earth's crust.