Which rock type is an example of an igneous formation?

Granite is classified as an igneous rock, which forms through the cooling and solidification of magma beneath the Earth's surface. This process occurs over a long period, allowing large crystals to develop, resulting in its coarse-grained texture. Granite is commonly found in continental crust and is frequently used in construction and architectural applications due to its durability and aesthetic appeal.

In contrast, slate is a metamorphic rock formed from shale under high pressure and temperature, while marble originates from the metamorphism of limestone and is primarily composed of calcite. Soapstone, on the other hand, is a metamorphic rock derived from talc-rich parent rocks and is often used for carvings and countertops because of its softness and heat resistance. Thus, granite stands out as the only example of igneous rock in this context.