Metamorphic Rocks
Metamorphic rocks form from other kinds of rocks that experience, or undergo, extreme heat and pressure over a long, long time. Because metamorphic rocks experience this, they often have layers that are curved or squiggly. These lines come from layers of rock being squished and pushed during the metamorphic process.
Examples of metamorphic rocks are gneiss, which has layers of gray and white, and slate, which has thin, hard gray layers.
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Examples of metamorphic rocks are gneiss, which has layers of gray and white, and slate, which has thin, hard gray layers.
If you want to learn more about metamorphic rock, click the link below: