Across
- 3. some of these valuable rocks are metamorphic
- 4. metamorphism that acts over a large area
- 5. type of metamorphism when the heat and pressure is small
- 7. the forces can reshape and bend rocks into these
- 9. marble is formed from this rock
- 12. slate is used for this
- 13. what slate is transformed into when heated to 400 degrees
Down
- 1. one of the causes of metamorphism is the collision of these plates
- 2. quartzite is formed from this rock
- 6. the rock that shale is transformed into
- 7. rocks that have been changed by heat and pressure
- 8. no 2 samples of marble are the _________
- 10. the rock used to decorate buildings
- 11. limestone is formed from melted layers of coral and _______