1. Metamorphic Rock
Chapter 4 Section 4

2. Metamorphic Rock Rock that has changed its form
Change is caused by heat and pressure
Changes can occur in the rock’s:
- appearance
- texture
- crystal structure
- mineral content

3. Types of Metamorphic Rock
Types are classified according to the arrangement of the grains

4. Types of Metamorphic Rock
Foliated – contain layers or bands
Rocks split along bands
Granite
changes to
Gneiss
Shale
changes to
Slate

5. Types of Metamorphic Rock
Nonfoliated – mineral grains are random
rocks do not split along bands
Sandstone
changes to
Quartzite
Limestone
changes to
Marble

6. Uses Marble and Slate are the most useful Buildings Statues Walkways
blackboards