Metamorphic Rocks
- Metamorphic rock is the transformation of an existing rock.
- Metamorphic rocks could come from sedimentary rocks, igneous rocks, or another older metamorphic rock.
- Metamorphic rocks are made by intense heat and pressure.
- The heat can be from 150 °C to 200 °C.
- Metamorphic rocks make up most of the Earth's crust.
- Metamorphic rocks are classified by texture and by how the chemicals and minerals are put together.
- There are two different types of metamorphic rocks.
- Foliated
- Slate
- Schist
- Gneiss
- Nonfoliated
- Marble
- Quartzite
- White marble is the main source to carve statues and monuments in.