Syenite is an intrusive igneous rock that primarily consists of feldspar, with little to no quartz. It typically has a coarse-grained texture and can vary in color, often appearing in shades of gray, pink, or green. Syenite forms from the slow cooling of magma beneath the Earth's surface, allowing large crystals to develop. This rock is often associated with continental crust and can be found in various geological settings. Syenite is less common than other igneous rocks like granite and is sometimes used in construction and decorative stone applications due to its attractive appearance.