Granite is not formed directly from volcanoes. While volcanoes are involved in the process, granite is actually an igneous intrusive rock. This means it forms from magma (molten rock) that cools and solidifies slowly *beneath* the Earth's surface.

Here's the breakdown:

1. Magma Formation: Volcanoes are associated with areas where the Earth's crust is thin and allows magma to rise from the mantle.

2. Intrusive Cooling: Some of this magma doesn't reach the surface and instead cools slowly deep underground. This slow cooling allows crystals to form, giving granite its characteristic coarse-grained texture.

3. Erosion and Exposure: Over millions of years, erosion can wear away the overlying rock, eventually exposing the granite to the surface.

So, while volcanoes are involved in the initial creation of the magma that forms granite, the granite itself is formed through a process of slow cooling and crystallization *underground*.