Granite itself doesn't "turn into" other rocks directly. Instead, it undergoes a process called metamorphism where it's transformed into different rocks under intense heat and pressure. Here's how that works:

* Intense Heat: Heat can cause the minerals in granite to recrystallize and change their composition.

* Pressure: Pressure, often from tectonic forces, compresses the granite, altering its texture and mineral arrangement.

Here are some common metamorphic rocks that can form from granite:

* Gneiss: A banded metamorphic rock with distinct layers of minerals, formed under high pressure and heat.

* Schist: A foliated metamorphic rock with a layered or flaky texture, formed under moderate to high pressure and heat.

* Migmatite: A mixed rock with features of both igneous and metamorphic rocks, often formed by partial melting of granite.

* Quartzite: A hard, non-foliated metamorphic rock formed from sandstone, which can contain granite fragments.

It's important to remember:

* The type of metamorphic rock depends on the specific conditions (temperature, pressure, and time) involved.

* Granite can also break down through weathering and erosion, forming sediment which can later be transformed into other rocks.

Let me know if you'd like more details on any of these metamorphic rocks!