Granite is a type of rock that is primarily composed of quartz and feldspar particles. It is an igneous rock, meaning it is formed from the cooling and solidification of molten magma or lava. Igneous rocks are classified into two main categories: intrusive and extrusive. Intrusive rocks, such as granite, form beneath the Earth's surface, while extrusive rocks form on the surface from volcanic activity.

Explanation:
Igneous rocks are formed when magma or lava cools and solidifies. Granite is specifically formed from the slow cooling of magma deep within the Earth's crust. As the magma cools, the minerals within it begin to crystallize and form interlocking grains. The main minerals found in granite are quartz and feldspar, although it may also contain other minerals such as mica or amphibole.

As the magma cools, it undergoes a process called fractional crystallization. This process involves the separation and crystallization of different minerals at different temperatures. Quartz and feldspar are some of the first minerals to crystallize from the magma, which is why they are the most abundant in granite.

Granite is a coarse-grained rock, meaning its crystals are visible to the naked eye. It typically has a speckled appearance due to the presence of different mineral grains. The colors of granite can vary, depending on the composition and proportions of the minerals present. For example, granite with a higher percentage of feldspar may appear lighter in color, while granite with a higher percentage of quartz may appear darker.

In conclusion, granite is primarily composed of quartz and feldspar particles and is obtained from igneous rocks. It forms through the slow cooling and solidification of magma deep within the Earth's crust.